News

Roundtable Blog: Four Years Since Russia’s Full-Scale Invasion Into Ukraine: What Have We Learned?

 Roundtable Blog:  Four Years Since Russia’s Full-Scale Invasion Into Ukraine:  What Have We Learned? 

Editor’s Note:

This blogpost is part of the PILPG Lawyering Peace roundtable series.  Rather than a traditional co-authored article, it presents a curated set of expert reflections from members of PILPG’s Peace Fellows and Ambassador Circle networks.  Marking four years since Russia launched its full-scale invasion of Ukraine on 24 February 2022, this roundtable examines how the war has reshaped international law, global security architecture, accountability mechanisms, and our understanding of modern aggression.

Anniversaries invite commemoration.  This roundtable instead invites assessment.  Four years on, the international community possesses insights that were unavailable in the early days of the invasion.  The war has tested the resilience of collective defense systems, exposed the limitations and adaptability of international institutions, accelerated transformations in military technology and information warfare, and catalyzed new approaches to sanctions, energy security, and legal accountability.  It has also revealed both the extraordinary durability of Ukrainian statehood and the profound human costs of prolonged high-intensity conflict.

This collection seeks to move beyond retrospective narrative toward forward-looking analysis.  What assumptions proved mistaken?  What institutional innovations have emerged?  How has the legal framework governing aggression and atrocity crimes evolved under pressure?  What lessons should policymakers internalize to deter future wars of aggression?  By elevating diverse expert perspectives across disciplines, this roundtable aims to distill the most consequential lessons of the past four years — and to consider how they should inform the future of peacebuilding, deterrence, and the international legal order.

If February 2022 was a moment of shock, February 2026 is a moment of reckoning. What have these four years revealed about power, law, resilience, and the future of the international order?

Dr. Paul R. Williams, Rebecca Grazier Professor of Law and International Relations at American University

Four years into Russia’s full-scale invasion, the first and most striking transformation has been the acceleration of technological change in warfare.  Artificial intelligence, autonomous systems, precision-guided drones, satellite-enabled targeting, and real-time data fusion have compressed decision cycles and expanded the battlefield into cyberspace and the electromagnetic spectrum.  Ukraine has demonstrated how commercially available technology, agile software development, and decentralized innovation can offset traditional force disparities.  The war has made clear that future conflicts will be shaped as much by code, algorithms, and adaptive manufacturing as by tanks and artillery.

Yet even as technology has evolved exponentially, the fundamental constraints of warfare remain stubbornly constant.  Attrition still matters. Manpower, training, logistics, and industrial capacity continue to determine strategic endurance.  Economic resilience based on energy security, defense production, fiscal sustainability has proven as decisive as battlefield ingenuity.  The lesson of the past four years is therefore not that technology replaces fundamentals, but that it amplifies them.  States that combine technological agility with demographic depth, industrial mobilization, and societal cohesion will shape the future of warfare; those that rely on innovation alone will discover that the enduring logic of war has not disappeared.

Second, the resilience and limits of the Euro-Atlantic alliance have come into sharper focus over the past four years.  In February 2022, many assumed that the United States would continue to underwrite European security with little political friction.  That assumption has eroded.  Domestic pressures in Washington have sharpened scrutiny of asymmetric burden sharing, signaling that long-term U.S. support cannot be detached from questions of allied contribution and strategic reciprocity.  The alliance has endured, but its internal equilibrium has shifted.

At the same time, the war exposed that Europe was militarily weaker and less prepared for high-intensity conflict than many believed.  Stockpiles were thin, defense industrial capacity had atrophied, and rebuilding credible surge capacity is proving more difficult than many policymakers had assumed.  Yet the war also catalyzed a remarkable strategic reawakening: increased defense spending, joint procurement initiatives, expanded production of ammunition and air defense systems, and a broader political acceptance that deterrence requires sustained investment.  The lesson is not alliance fragility, but alliance recalibration — toward a more balanced distribution of risk, cost, and capability within the Euro-Atlantic community.

The next lesson learnt is that the economic sanctions policy as a tool to deter aggression remains strikingly anemic.  Despite unprecedented coordination in response to Russia’s invasion, sanctions have struggled to produce rapid behavioral change or to meaningfully constrain a determined, resource-rich state.  Financial restrictions, export controls, and asset freezes have imposed real costs, but they have not fundamentally altered strategic decision-making in Moscow. The limits are both institutional and structural.  Institutionally, sanctions regimes are fragmented, unevenly enforced, and vulnerable to political fatigue.  Structurally, decades of deep economic integration, particularly in energy, finance, and critical supply chains, created mutual dependencies that diluted deterrent credibility before the war and complicated escalation once it began.  The lesson is sobering: sanctions can signal condemnation and incrementally degrade capacity, but absent broader strategic alignment and sustained enforcement, they remain an insufficient stand-alone mechanism for deterring wars of aggression.

Finally, over the past four years, it has become increasingly clear that this is not simply Russia’s war of aggression against Ukraine, but a broader war of aggression against Europe itself.  The objectives extend beyond territorial control to reshaping the European security architecture, weakening transatlantic cohesion, and reasserting spheres of influence long thought obsolete.  Energy coercion, cyber operations, election interference, disinformation campaigns, and calibrated military pressure along NATO’s eastern flank reveal a strategy aimed not only at Kyiv, but at the political and strategic unity of the continent.

Seen in this light, Ukraine has been the frontline, but not the sole target.  The war has tested Europe’s energy resilience, industrial capacity, democratic institutions, and willingness to bear sustained economic and military costs.  It has forced a reckoning with assumptions about post–Cold War stability and exposed how deeply European security remains intertwined with the outcome on Ukrainian territory.  The central question is no longer whether Europe is supporting Ukraine, but whether Europe is defending its own security order through Ukraine.

Major General Darrell Guthrie, US Army (Ret.), PILPG Senior Peace Fellow

 Four years into the war, Russia has failed to translate its initial ambitions into sustained strategic success.  Since the early phases of the invasion and the subsequent Ukrainian counter-offensives, the Russian Army has been unable to generate a decisive offensive threat beyond the eastern oblasts it currently contests.  At sea, the Russian Navy has largely withdrawn from active Black Sea operations, deterred by Ukraine’s innovative use of autonomous maritime systems.  In response to battlefield constraints, Russian leadership has increasingly relied on ballistic missile and suicide drone attacks targeting civilian populations and critical energy infrastructure — a shift that reflects both strategic frustration and a continued willingness to weaponize terror. 

At the same time, Ukraine’s military has demonstrated resilience, adaptability, and operational creativity.  Ukrainian forces have integrated autonomous systems across the frontlines and conducted deep strikes against oil production and logistical facilities inside Russia.  Despite earlier fears that fluctuations in U.S. support would create crippling ammunition shortages, coordinated domestic production and expanded European defense cooperation have significantly strengthened supply chains and replenished critical stockpiles over the past year. 

Several lessons stand out.  The Russian military remains anchored in a 20th-century attritional mindset, relying on mass and firepower rather than agility.  In contrast, Ukraine’s experience underscores the importance of securing reliable supply chains, reducing operational restrictions on advanced weapons systems, and integrating autonomous capabilities at scale.  The war has already reshaped how major powers assess force structure, industrial preparedness, and the role of unmanned systems in future conflicts.  While the fighting continues, each failed Russian attempt to break Ukraine’s defensive lines or erode civilian resolve narrows Moscow’s strategic options and reinforces the long-term limits of coercive warfare.  

Dr. David M. Crane, Founding Chief Prosecutor of the UN Special Court for Sierra Leone and Founder of the Global Accountability Project

Four years into Russia’s full-scale assault on Ukraine, the world has had time to absorb what this war has revealed — about Ukraine, about Russia, and about the international system that surrounds them. The war has not followed the script many expected in February 2022, and the lessons that have emerged are sobering.

First, Ukraine’s resilience has been extraordinary.  What was supposed to be a quick decapitation strike instead became a national awakening.  Ukrainians have shown that motivation, local knowledge, and a sense of existential purpose can outweigh assumptions about military size.  Their ability to adapt — whether through drone innovation, rapid battlefield learning, or community-driven defense — has reshaped how modern resistance is understood.

Second, Russia’s strengths and weaknesses have both been laid bare.  The early failures exposed deep problems in planning, logistics, and leadership.  Yet Russia has also shown a capacity to absorb losses, reconstitute forces, and grind forward despite sanctions and diplomatic isolation.  The war has demonstrated that an authoritarian state can sustain a long, costly conflict if it is willing to sacrifice its own people and economy to do so.

Third, civilians have paid the highest price.  Millions have been displaced.  Families have been separated.  Children have grown up in basements, shelters, and foreign countries.  Russia’s strikes on energy grids, apartment blocks, and public infrastructure have made civilian life unpredictable and dangerous.  The humanitarian toll is not a side effect of the war — it is one of its defining features.

Fourth, the war has tested the cohesion of democratic alliances.  Ukraine’s survival has depended on sustained Western support, and that support has not always been guaranteed.  The war has revealed both the power of collective action and the fragility of political will.  It has forced democracies to confront a basic question: how much does the international order matter when it is challenged by force?

Fifth, the nature of warfare is changing in real time.  Drones, electronic warfare, satellite intelligence, and commercial technology have become central to the battlefield.  The war has shown that large-scale land conflict in Europe is not a relic of the past, and that future wars will blend traditional combat with rapidly evolving digital tools.

Sixth, time itself has become a strategic weapon.  Russia is betting that fatigue — political, economic, and emotional — will outlast Ukraine’s ability to fight and the West’s willingness to help.  Ukraine, in turn, is betting that determination and international solidarity can outlast Russian coercion.  The duration of the war has become part of the war. Time and distraction are Putin’s ultimate weapons.

Finally, the war in Ukraine has reshaped the landscape of international law.  The invasion has revived global attention to the crime of aggression, a charge rarely pursued since Nuremberg.  Ukraine’s partners have pushed for new accountability mechanisms, including a special tribunal focused specifically on Russia’s decision to wage an unlawful war.  At the same time, the systematic targeting of civilians, forced deportations, and attacks on critical infrastructure have forced the international community to confront gaps in how atrocity crimes are investigated and prosecuted.  The war has reminded the world that international law is only as strong as the political will behind it — and that accountability for aggression and mass harm cannot be an afterthought if the rules-based order is to survive.  The bright red thread to atrocity accountability is political not legal.

In the end, the fourth anniversary offers no easy conclusions.  What it does offer is clarity: deterrence cannot be assumed, borders are not self-enforcing, and the defense of a rules-based order requires more than statements of principle.  Ukraine’s struggle is reshaping global security, and the lessons learned today will influence international politics for decades.

Ambassador Zorica Marić-Djordjević, former Head of the Permanent Mission of Montenegro to the World Trade Organization and Special Representative of Montenegro to the UN Human Rights Council

Four years on, any commemoration of Russia’s full-scale invasion must hold two realities together: the magnitude of devastation and the depth of Ukrainian resilience.  The war has shattered cities, displaced millions, and reintroduced to Europe a form of industrial, attritional violence many believed had been confined to history.  Yet it has also revealed a society capable of extraordinary mobilization, improvisation, and sacrifice, alongside an international coalition that, despite hesitation and internal divisions, has sustained Ukraine far longer than the aggressor and many observers initially expected. 

Russia’s full-scale invasion of Ukraine has forced Europe to confront its own vulnerability, accelerating a shift from a market-driven union toward a more security-conscious, geopolitical actor.  Power dynamics within the Union have subtly shifted: the Baltic and Nordic states, Poland, and Romania now carry greater influence on Russia policy; Germany has undergone a difficult strategic reorientation; and Finland and Sweden, long associated with neutrality, have joined NATO.  As a result, the EU now speaks about its security, strength, and even its “destiny” in far starker terms than before 2022.

As the end of the war approaches, the prospect of some form of “emergency accession” or accelerated integration of Ukraine into the EU has shifted from a peripheral debate to a central test of European unity.  A credible, fast tracked EU pathway would not merely reward Ukraine’s sacrifice but also function as a security instrument in its own right, anchoring Ukraine irreversibly within Europe’s political, legal, and economic space and raising the long term costs and complexity of any renewed Russian attempt to control Ukraine. 

Ambassador Ylber Hysa, former diplomat of the Republic of Kosovo 

In the years preceding the full-scale invasion of Ukraine by Russia in February 2022, intelligence warnings from the United States and the United Kingdom were met with skepticism across parts of Europe.  This hesitation reflected the dominant post-Cold War paradigm: the assumption that large-scale interstate war in Europe had become structurally irrational.  The skepticism felt reasonable, because leaders of Europe felt Russian invasion was not “rational”.

This paradigm rested on three core premises: economic interdependence reduces incentives for conflict; institutional frameworks provide mechanisms for dispute resolution; and state actors primarily calculate interests in material terms. Within such a framework, invasion appeared strategically self-defeating.

However, developments in 2021 indicated an alternative logic. Following the Geneva summit with the United States, Vladimir Putin increasingly articulated a historical narrative that challenged Ukrainian sovereignty.  His interpretation of medieval statehood and shared origins suggested that identity and historical grievance, rather than economic calculation, were central to the Kremlin’s strategic worldview. The emphasis on historical continuity evokes comparisons within Russian discourse to transformative rulers such as Peter the Great or Joseph Stalin — figures associated with territorial expansion and centralized authority.

The invasion exposed miscalculations on multiple sides.  European governments and Ukrainian leadership underestimated the likelihood of maximalist action.  Russian planners appear to have underestimated Ukrainian resistance and Western cohesion.  These reciprocal misjudgments highlight the limits of rationalist models when actors prioritize ideological or historical objectives.

The events of February 2022 may therefore represent the end of the post-Cold War security order in Europe.  Rather than signaling the collapse of rationality per se, the war demonstrates the inadequacy of narrow materialist assumptions about rational behavior.  States may act “rationally” according to internally defined ideological goals, even when such actions impose significant economic costs.

In this sense, the contemporary period could be conceptualized as a transition from liberal institutional optimism toward renewed geopolitical realism. Defense spending, alliance structures, and deterrence strategies have regained prominence.

At the same time, Ukraine’s resistance has challenged deterministic assessments of military capability. The conflict has also acquired normative dimensions, framed by many Western actors as a defense of sovereignty and liberal political order.

Whether this normative framing will shape the long-term structure of European security remains uncertain. What is clear, however, is that February 2022 marked a structural rupture in the assumptions that governed European politics for more than three decades.

Ambassador Joachim Rücker, former Special Representative of the UN Secretary-General and Head of the UN Mission in Kosovo

Four years into Russia’s full-scale invasion of Ukraine, the contrast with earlier responses to aggression within the United Nations system remains striking.  Iraq’s 1990 invasion of Kuwait triggered swift and decisive action by the UN Security Council, culminating in the authorization of force and the rapid liberation of Kuwait.  In the case of Ukraine, by contrast, the Security Council has been structurally paralyzed by the veto of a permanent member that is itself the aggressor.  The comparison underscores both the promise and the vulnerability of the collective security framework established under the UN Charter.

Yet the story does not end with the Security Council deadlock.  Faced with paralysis, the UN General Assembly has assumed a more visible and assertive role.  Through emergency special sessions and repeated resolutions invoking the “Uniting for Peace” precedent, the General Assembly has articulated clear and sustained condemnation of Russia’s aggression and reaffirmed Ukraine’s territorial integrity.  While its resolutions are not legally binding, they carry significant normative weight and demonstrate that multilateral legitimacy does not disappear when the Security Council fails to act.

This more assertive posture of the General Assembly is not accidental.  It has emerged largely as a response to Russia’s war of aggression and the institutional vacuum created by Security Council inaction.  The evolution of the Assembly’s role should not be overlooked amid competing global crises or diplomatic distractions.  It reflects an effort by the broader membership of the United Nations to preserve the principles of the Charter when the primary enforcement organ is unable to fulfill its mandate.

Stephanie Gusching⁩, Associate at White & Case, Secondee at the Public International Law and Policy Group

Four years after Russia's full-scale invasion of Ukraine, the war has exposed the structural weaknesses of the UN collective security apparatus.  Under Articles 39-42 of the UN Charter, the Security Council (UNSC) is tasked with identifying threats to peace and authorizing collective, binding measures to combat them.  However, Russia’s status as a permanent member of the UNSC has enabled it to veto draft resolutions condemning its actions and instituting remedial measures.  This case illustrates a core weakness in the enforcement authority of a system dependent on the consent of the most powerful states: when a permanent member is itself the alleged aggressor, the system is functionally inoperative.

In response to UNSC paralysis, the UN General Assembly (UNGA) invoked the “Uniting for Peace” procedure to impose normative pressure on Russia.  The UNGA adopted multiple resolutions with large majorities that condemned Russia’s invasion, affirmed Ukraine’s territorial integrity, and called for the withdrawal of Russian forces.  However, the key weakness of UNGA resolutions is their non-binding nature.  This demonstrates that while international law provides strong rules against aggression, it has comparatively weak mechanisms to enforce them.

By highlighting these weaknesses, Russia’s war in Ukraine has thus ignited discussion on reform within the UNSC.  Proposals include voluntary veto restraint, mandatory abstention, and expansion of UNSC membership.  However, the path to reform is laden with its own set of challenges, as amendments to the UN Charter require ratification by the permanent members whose very power would be curtailed.

Kateryna Kyrychenko, Head of Ukraine Legal Affairs and Program Management at the Public International Law and Policy Group

Four years into Russia’s full-scale invasion, one of the most visible changes has been the shift from discussing accountability to building it.  In February 2022, many conversations about justice felt premature - almost theoretical - while the trajectory of the war remained deeply uncertain.  Today, we are living with institutions that did not exist when the invasion began.

The foundations of the International Compensation Mechanism have been laid.  The Register of Damage for Ukraine, the first chain of the Mechanism, is operational, creating a structured mechanism to document claims and prepare the groundwork for reparations.  The Special Tribunal for the Crime of Aggression, established last year, marked a historic step in addressing leadership responsibility for the decision to wage an unlawful war.  At the same time, international investigations have expanded across jurisdictions, and the International Criminal Court has issued six arrest warrants in the situation in Ukraine, which is a notably rapid pace by international criminal law standards.  None of this eliminates the political challenges of enforcement.  But it does show that international law is not static.  Faced with gaps and paralysis, states and practitioners have demonstrated an ability to innovate — to create complementary mechanisms rather than accept impunity as inevitable.

Yet the legal architecture tells only part of the story.  Civilian resilience has been the constant foundation beneath every institutional development.  Local authorities continue governing despite repeated attacks.  Civil society organizations document crimes while supporting displaced families.  Energy workers restore power after each strike on infrastructure.  Teachers, doctors, volunteers, and ordinary families have adapted to a reality of prolonged uncertainty without surrendering their sense of dignity or national identity.

For me, the lesson of these four years is that institutions and people sustain each other.  Accountability mechanisms derive strength from a society that refuses to normalize aggression.  And civilian endurance is reinforced by the knowledge that crimes are being recorded, named, and pursued.  International law does not defend itself, it rather advances when communities insist that it must.

Roundtable Blog: Voting Under Duress — Referenda, Aggression, and the Limits of Democratic Consent

Roundtable Blog: Voting Under Duress — Referenda, Aggression, and the Limits of Democratic Consent

Editor’s Note:

This post is part of the PILPG Lawyering Justice roundtable series.  Rather than a traditional co-authored article, it presents a curated set of expert reflections from members of PILPG’s Ukraine Peace Negotiations Working Group.  Drawing on a closed-door discussion held on 6 February 2026, this roundtable examines one of the most legally and politically fraught questions facing Ukraine: whether a national referendum can play a legitimate role in a peace process shaped by aggression, occupation, and mass displacement.

Referenda are commonly understood as the highest expression of democratic will.  Yet in contexts defined by coercion and force, democratic instruments themselves may be distorted into tools that legitimise unlawful outcomes.  This roundtable explores the legal limits of consent under international law, the precedent-setting risks of post-aggression referenda, and the strategic choices Ukraine faces in navigating popular participation without eroding its sovereignty or the international legal order.

1. Can Territorial Change Resulting from Aggression Ever Be Legitimated by Referendum?

Dr. Paul R. Williams, Rebecca Grazier Professor of Law and International Relations at American University

The issue involves both legal and ethical dimensions.  Even if procedurally lawful under domestic legislation, referenda in occupied territories raise profound normative concerns.  Creating a referendum-based validation mechanism would institutionalise a pathway for legitimising aggression.  The core question is not merely whether Ukraine can hold a referendum, but whether international law permits the consequences such a referendum would produce.

Dr. David Crane, Founding Chief Prosecutor of the UN Special Court for Sierra Leone and Founder of the Global Accountability Project

Any referendum conducted after aggression risks negating the crime of aggression by retroactively legitimising unlawful territorial claims.  Even a procedurally valid vote may be interpreted as acknowledgement of Russia’s claims over Crimea or Donbas.  Allowing referenda to validate conquest creates a dangerous global precedent — invade, hold territory, organise a vote, and claim legality.  Ukraine is not the only audience; other potential aggressors are closely watching how international law responds.  At the same time, a clearly framed referendum rejecting territorial concessions could place Ukraine in a strong bargaining position by demonstrating unified public resistance to ceding land.

Prof. Milena Sterio, Distinguished Professor of Law at Cleveland State University

The prohibition on the acquisition of territory by force is a jus cogens norm that cannot be derogated from through popular consent.  Even genuine democratic approval cannot cure the illegality of territorial change resulting from aggression.  Referenda held under coercive conditions undermine the non-recognition doctrine that protects Ukraine’s territorial integrity. International law draws a clear line: sovereignty cannot be voted away when force is the determining factor.

2. Does Democratic Consent Retain Legal Meaning When Given Under Duress?

Prof. Michael Kelly, The Senator Allen A. Sekt Endowed Chair in Law at Creighton University School of Law

Democratic sovereignty theory does not support territorial concessions made under military pressure.  Consent obtained under invasion and occupation constitutes duress and invalidates any agreement to surrender territory.  If territory were ever relinquished, international law would require full compensation, including land value, infrastructure, and subsurface resources, underscoring the impracticality of referendum-based territorial loss.  

Article 2(4) of the UN Charter protects political independence and territorial integrity.  Referenda combined with elections under current conditions would be nearly impossible to organise without fatally undermining legitimacy.

Ambassador Zorica Marić-Djordjević, former Head of the Permanent Mission of Montenegro to the World Trade Organization and Special Representative of Montenegro to the UN Human Rights Council

Democratic legitimacy cannot override the principle of non-recognition of unlawful acts.  A Ukrainian referendum ratifying territorial change would validate aggression through democratic means.  The optics alone would weaken Ukraine’s position and offer a model for other conflicts.  Any referendum must avoid even implicit recognition of annexation outcomes.

At the same time, a referendum conducted by Ukraine under its own constitutional framework differs fundamentally from any vote organised under foreign occupation.  In principle, Ukraine may consent, through a treaty freely negotiated between sovereign equals, to a boundary adjustment without breaching the duty of non-recognition (provided it does not validate the prior unlawful use of force).  A referendum could serve as a channel of domestic democratic endorsement for such consent.  However, such consent would not erase the illegality of the original aggression, nor extinguish state responsibility, criminal accountability, or claims to reparations.  Those legal consequences remain governed by separate bodies of international law.  The principal risk lies in perception: if territorial loss were seen as “ratified,” it could politically suggest that sustained aggression yields results and invite similar tactics elsewhere.

Greta Ramelli, Legal Officer, Program Manager at the Public International Law & Policy Group

Under current Ukrainian law, referenda cannot be held under martial law, creating a significant legal constraint.  Any referendum would therefore be contingent on a ceasefire and linked to broader peace negotiations.  Referenda should not be treated as standalone mechanisms but as part of a larger sequencing strategy.  

Short-term peace achieved through territorial concessions may prove unsustainable in the long term.

3. What Precedents Would a Post-Aggression Referendum Set Beyond Ukraine?

Dr. Paul R. Williams, Rebecca Grazier Professor of Law and International Relations at American University

International law has spent decades delegitimising conquest, and referenda risk reversing that progress.  A model of “invade, hold, vote, legitimise” would erode the prohibition on territorial acquisition by force.  Institutionalising such a mechanism would provide a blueprint for laundering aggression.  Ukraine’s democratic credentials do not exempt it from the constraints of international legal order.

Stephanie Gusching⁩, Associate at White & Case, secondee at the Public International Law and Policy Group

Referenda conducted under duress risk legitimising similar tactics in other geopolitical contexts.  Potential spillover effects include Taiwan, Greenland, and other contested territories.  Ukraine’s decision will shape how democratic processes are perceived in future conflicts involving force.

Ambassador Jorge Lomonaco, former Ambassador of Mexico to the UN Human Rights Council, and to the Organization of American States 

Historical precedents demonstrate how treaties and ratification processes can be shaped by power asymmetries.  The nineteenth-century US–Mexico war illustrates how territorial transfer and ratification can produce enduring legal ambiguities.  Formal validation through legal processes does not eliminate underlying concerns about coercion.

4. Can Referenda Be Used Strategically Without Ratifying Territorial Loss?

Ambassador Ylber Hysa, former diplomat of the Republic of Kosovo 

Referenda may serve purposes other than territorial validation, including domestic cohesion and political legitimacy.  The framing of the question is critical; it should be designed to nullify annexation claims rather than endorse territorial change.  Used carefully, referenda can strengthen Ukraine’s internal unity during negotiations without conceding sovereignty.  

Delayed or postponed referenda may preserve flexibility pending more favourable geopolitical developments.  Interim agreements could include review clauses, though this may require accepting temporary concessions.

Ambassador Jorge Lomonaco, former Ambassador of Mexico to the UN Human Rights Council, and to the Organization of American States 

Referenda can function tactically to gain time and political space rather than to resolve territorial questions.  Strategic delay may allow Ukraine to consolidate international support and military capacity.  Tactical considerations may at times prevail over strictly legal ones, but without crossing red lines on recognition.

Tyler Thompson, Co-Founder and Chief Negotiation Officer of Expeditionary, founding member of the U.S. State Department’s Negotiations Support Unit 

The purpose of the referendum must be clearly defined.  For Russia, an ideal outcome would validate annexation; for Ukraine, only an overwhelming rejection would be beneficial.  A divided or ambiguous result would be strategically dangerous.  Russia would exploit drafting ambiguities and legal grey zones in peace agreements.

5. How Should Voter Inclusion Be Addressed After Occupation and Mass Displacement?

Kateryna Kyrychenko, Head of Ukraine Legal Affairs and Program Management at the Public International Law and Policy Group

Ukrainians from occupied territories and displaced persons are arguably the most directly affected by any territorial outcome.  Excluding these populations undermines substantive justice and democratic legitimacy.  At the same time, differentiated voting schemes raise serious concerns under equal suffrage principles.  Any referendum design must confront the realities of displacement, coercion, and forced transfer, while ensuring that voter inclusion criteria are clearly defined and legally defensible.

Tyler Thompson, Co-Founder and Chief Negotiation Officer of Expeditionary, founding member of the U.S. State Department’s Negotiations Support Unit 

Population movements, forced displacement, and settlement of Russian nationals in occupied territories complicate voter eligibility.  There is no clear precedent for weighted or differentiated voting in such contexts.  Demographic manipulation risks distorting the electorate, and any ambiguous or divided outcome would be strategically harmful for Ukraine.  Russia would likely exploit grey zones in interpretation to advance lawfare narratives.

Ambassador Joachim Rücker, former Special Representative of the UN Secretary-General and Head of the UN Mission in Kosovo

Referenda must comply with Ukraine’s constitutional framework.  Narrow parliamentary or referendum majorities may be insufficient for decisions of existential national importance; national unity, not procedural minimalism, should guide territorial decisions.  Historical precedents suggest populations in occupied territories should participate once conditions allow genuine and free expression.  Comparative constitutional models, including post-war Germany, illustrate how decisions can be structured when parts of the population are temporarily unable to vote.

6. How Should a Referendum Question Be Designed — or Should It Be Deferred Entirely?

Ambassador Zorica Marić-Djordjević, former Head of the Permanent Mission of Montenegro to the World Trade Organization and Special Representative of Montenegro to the UN Human Rights Council

Referendum questions must be singular, clear, and legally precise.  Bundling multiple issues risks misrepresenting voter intent.  The Cyprus experience demonstrates how rushed or failed referenda can stigmatise rejection as opposition to peace and complicate future negotiation rounds.  Venice Commission involvement and adherence to international electoral standards are essential.  Explicit criteria for voter inclusion should be developed in advance.

Where a peace agreement combines territory, security guarantees, and status arrangements, simplicity and legal clarity are essential.  OSCE and Venice Commission standards require neutral phrasing, prior review, and conditions for informed choice.  Splitting a comprehensive agreement into multiple binding questions risks inconsistent outcomes and an ambiguous mandate, as illustrated by the 2004 Annan Plan referendum.  A cautious model for Ukraine would involve a single principal question approving the agreement “as ratified by the Verkhovna Rada,” prior constitutional review of the wording, and full public dissemination of the agreement under balanced campaigning conditions.  Such safeguards cannot eliminate political risk, but they would reduce legal ambiguity and strengthen procedural legitimacy.

Ambassador Ylber Hysa, former diplomat of the Republic of Kosovo 

Interim arrangements may include review clauses without resolving sovereignty questions immediately.  Postponed referenda may offer a safer path than premature votes under pressure.  Buying time may be preferable to allowing Russia to dictate the pace.  The political costs of delay must be weighed against the irreversible consequences of recognition, and interim arrangements should not prejudice long-term sovereignty claims. International monitoring presence is critical to legitimacy.

Dr. David Crane, Founding Chief Prosecutor of the UN Special Court for Sierra Leone and Founder of the Global Accountability Project

Ceasefires and deconfliction arrangements can provide a neutral negotiation platform without resolving territorial questions.  In some circumstances, not holding a referendum is the most democratic and legally responsible choice.  Democracy should not be forced to legitimize outcomes produced by force.

Conclusion

This roundtable underscores a central lesson: democratic mechanisms cannot be used to repair the legal damage caused by aggression.  For Ukraine, restraint in deploying referenda may be as important as democratic participation itself. 

The challenge is not whether Ukrainians should shape peace, but how to ensure that democratic tools strengthen, rather than erode, Ukraine’s sovereignty and the international legal order.

Defending before the International Criminal Court - An Interview with Mylène Dimitri

Defending before the International Criminal Court

An Interview with Mylène Dimitri

Edited by Cailan Cumming, Kate Gibson & Paul Williams

A Note on Defending Justice

This blog is part of the Defending Justice series, an initiative of the Public International Law and Policy Group (PILPG) to promote an eclectic array of  voices within the field of international criminal law. 

As part of our broader efforts to strengthen institutions of justice, this series seeks to create space for dialogue around the varied perspectives and concerns that shape these institutions. With that aim in mind, we interviewed a series of defense practitioners working in international criminal law and distilled their experiences and insights into a series of first-person blogs, preserving the spirit and voice of those interviews.

Editor’s Note

This monograph delves into the inner workings of the International Criminal Court (ICC) through the lens of Mylène Dimitri, who has acted as Lead Counsel for an accused before the ICC. By comparing her experiences as Counsel before the ICC and the International Criminal Tribunal for Rwanda (ICTR), Dimitri highlights the unique challenges the ICC’s legal framework presents for defense counsel and the pursuit of fair trials. She offers insight into her strategies for working with diverse clients, victims, and witnesses while navigating these challenges and upholding her professional ethos as an officer of the court. Drawing on 23 years of defending cases at international tribunals, Dimitri illustrates that being an effective defense lawyer requires resourcefulness, integrity, and a relentless drive to ensure fair trials. Like many defense lawyers, Dimitri believes deeply in the ICC’s mission to help societies move beyond cycles of conflict and prevent future atrocity crimes. To help realize that mission, she provides readers with a strong vision for the future of the ICC, one in which victims are heard and supported and defendants’ rights are upheld. 

Introduction

The International Criminal Court, established by the 1998 Rome Statute and seated in The Hague, was founded to prosecute individuals for the most serious crimes: genocide, crimes against humanity, war crimes, and the crime of aggression. As the first permanent international court of its kind, the ICC was envisioned to be a symbol of global accountability and the rule of law. Yet, for those working within its system, and especially defense counsel, the Court presents a unique set of structural and procedural challenges that distinguish it from previous ad hoc tribunals that prosecuted the same international crimes.

I entered the field of international criminal law at a time when the ICTR and International Criminal Tribunal for the former Yugoslavia (ICTY) were still at the center of post-conflict justice efforts. From 2002 to 2006, I moved from intern to full-time legal assistant at a Canadian law firm handling international criminal cases in Arusha, Tanzania, which was the seat of the ICTR. I went on to be Co-Counsel in the first Canadian case tried under the country’s national Genocide Act in 2006. From there, my path took me back to Tanzania, where I worked on another ICTR case until 2015, and then became Co-Counsel for the Special Tribunal for Lebanon, before becoming Lead Counsel before the ICC.

Defending Before the ICC vs. Ad Hoc Tribunals

Legal Framework

The ICTR was established through a United Nations Security Council resolution and its procedural framework leaned more heavily on common law practices. This offered a certain clarity and predictability to the courtroom proceedings and trial procedures followed an ordered process familiar to adversarial systems. By contrast, the ICC was created through a multilateral treaty—the Rome Statute—and incorporates elements from both common law and civil law traditions, resulting in a hybrid legal system that is both ambitious and, at times, unwieldy. While this is intended to serve as a more representative international legal model, it has, in practice, introduced considerable complexity and challenges into legal proceedings. 

The mixture of legal traditions at the ICC gives rise to interpretative uncertainty, as judges and counsel must navigate conflicting procedural presumptions—an issue not typically encountered in tribunals grounded in a single legal system. Civil law and common law systems on their own each have consistency and safeguards, but when combined, the logic of the procedure and the procedural safeguards of the system can diminish. For example, drafters from Romano-Germanic legal systems insisted on including a confirmation phase at the ICC, akin to the procedure conducted by an investigating judge in civil law systems. There, the investigating judge plays an active role in collecting all relevant evidence and questioning witnesses before deciding whether a case should proceed to trial. That process is thorough, but also linear and contained. 

At the ICC, Article 61 of the Rome Statute introduced a process for confirmation hearings that were intended to serve a similar function of screening cases before trial. However, the ICC’s version lacks the necessary tools and powers that make the civil law procedure effective. For instance, the Pre-Trial Chamber does not call or question witnesses, and the defense is not allowed to cross-examine them at this stage. Instead, the prosecution simply submits written witness statements, and the Chamber bases its decision on these documents alone.

In theory, the confirmation hearing is supposed to allow the defense to challenge the charges. In practice, this is nearly impossible. Without the ability to question witnesses or assess the credibility of the individuals whose testimony underpins the case, the defense is forced to respond to serious allegations based solely on untested paper statements. This strips the confirmation hearing of its intended value and makes it performative rather than substantive. 

In civil law systems, once a case is confirmed for trial, the investigating judge continues to play an active role in collecting evidence, gathering documents, and questioning witnesses. In contrast, common law systems rely on adversarial trials where it is crucial to determine which pieces of evidence are admitted during the trial in order for the defense to test the evidence and present their case. At the ICC, however, these two systems are blended in a way that creates procedural confusion. Evidence may be collected and submitted during the trial phase, yet decisions on admissibility are frequently deferred until the judgment stage, leaving the defense uncertain as to which material will ultimately be considered by the judges. In cases arising from conflicts that occurred within the last decade, the magnitude of available evidence—driven by the widespread use of smartphones and social media—is unprecedented. In this context, the submission regime, which permits the large-scale submission of material while postponing admissibility determinations, creates an immense burden on the defense and generates significant uncertainty in the development of defense strategy, particularly with respect to how specific pieces of evidence should be addressed, challenged, or prioritised.

The ability to call witnesses or rely on documents during trial often hinges on whether those materials are formally admitted. At the ICC, the defense may not know what has been admitted until late in the proceedings, hindering trial preparation and strategy. Ultimately, the combination of a civil law–style pre-trial investigation phase led by an investigative judge and a common law–style adversarial courtroom process creates procedural tensions that can be fundamentally incompatible, to the detriment of the suspect or accused.

This tension also becomes visible in the ICC’s treatment of witness statements. In civil law systems, an investigating judge conducts witness interviews and records both the questions and the answers in detail. The defense has access to the full record, which provides essential context and allows the defense to assess credibility and prepare informed questions if the witness is later called to testify at trial. The opportunity to examine the witness on their statement is a key procedural safeguard. At the ICC, however, the defense may receive only a sanitized statement of the witness's statement prepared by the investigator. Without access to the actual questions asked, the ability to effectively cross-examine the witness is significantly diminished, undermining a key procedural safeguard.

The framework of criminal proceedings in the civil law tradition works, as does the framework in the common law tradition. The mixture, however, has created procedural difficulties to the detriment of the judicial certainty for a suspect or an accused. The ICC’s hybrid system, while well-intentioned, often gives rise to significant challenges that strike at the heart of the procedural safeguards designed to protect the rights of the accused.

Length

I participated in a roundtable hosted by the Nuremberg Academy on one of the most pressing issues facing the ICC today: the length of its proceedings. During the discussion, I raised two central factors that, in my view, significantly contribute to these delays—the confirmation of charges process and the redaction regime.

As mentioned, the confirmation of charges hearing relies on the prosecution’s written statements. In reality, the prosecution frequently asks to delay proceedings so that it can continue investigating and strengthen its case. It is easy to see how months, if not years, can pass before a trial even starts. The ICC’s three-stage burden of proof structure compounds this issue. The procedure moves from a warrant of arrest based on “reasonable grounds to believe,” to confirmation of charges based on “substantial grounds to believe,” and finally to trial, where the standard for a factual finding is “beyond reasonable doubt.” This means in practical terms that the same evidence can be assessed at each stage, but is assessed in accordance to the different standard of proof, greatly lengthening the process. Each of these stages introduces a layer of delay, particularly where procedural design choices made at the outset contribute to the overall length and complexity of the proceedings.

Although perhaps less obvious, the second major issue contributing to lengthy trials is redactions. Each ICC Pre-Trial Chamber will adopt a redaction protocol, which governs the parties’ ability to apply redactions to the evidence. However, witness statements often arrive from the prosecution heavily redacted because the prosecution is permitted to apply "standard redactions" to witness statements in order to protect what it defines as innocent third parties, family members, or witness locations. However, in many cases, these redactions hinder the defense's ability to investigate the case. For example, if a witness is alleged to have been a child soldier, redacting the names of family members makes it impossible for the defense to verify his background—such as where he went to school, when he was born, or whether he was indeed associated with an armed group. A witness might claim that their house was burned down and that a neighbor witnessed it, yet the neighbor’s name is redacted and we are left unable to verify even the most basic facts of the case. 

These are core components of the allegations against an accused, and where the defense is prevented from conducting meaningful investigations, the right to a fair trial is undermined. The lifting of redactions can require months of iterative correspondence with the prosecution, during which time the defense remains unable to assess or act upon key material. This redaction regime is resource-intensive and time-consuming, generates extensive litigation, and places a significant burden on the defense, thereby contributing to delays, procedural inefficiencies, and inequality of arms.

These concerns have been raised repeatedly before the Chambers, in particular Trial Chambers, which have on numerous occasions recognized the legitimacy of defense requests and granted appropriate relief. Nevertheless, the issue remains recurrent, as the prosecution has not consistently adapted its redaction practices to reflect the applicable jurisprudence and the principles it sets out. As a result, similar disputes continue to arise, leading not only to delays for the defense but also to further postponements of proceedings, including requests by the prosecution for extensions of time or adjournments of confirmation hearings due to the protracted and complex redaction process. In this context, witnesses to crimes who are central to the allegations should not automatically be treated as “innocent third parties.”

The cumulative effect of redactions is staggering. A single witness statement might have dozens of redactions. Multiply that by hundreds of statements, and you have a defense team forced to write constant requests to the prosecution just to access the basic information necessary to perform our duties as defense counsel—information that is not for public access, but for our own use as officers of the court, bound by confidentiality and strict codes of conduct. Each request leads to further delay, more litigation, and a heavier administrative burden on everyone involved.

By contrast, at the ICTR, defense teams were trusted. We received full disclosure with few to no redactions, which allowed us to begin our investigations right away. The ability to act promptly had a direct impact on the overall length of proceedings, as defense teams could prepare for trial as soon as the arrest was made, corroborating or challenging witness accounts without delay. While some ICTR trials were long, particularly in multi-accused cases, the overall structure allowed for a much more efficient judicial process. At the ICC, the path from arrest to final judgment is markedly longer, which again interferes with the rights of the accused to trial without undue delay. 

Location and Access

At the ICTR, the Court’s proximity to the field brought it closer to the realities of the conflict—the people, the terrain, the culture, and the challenges of building a defense case. This translated into a hands-on, pragmatic approach by defense counsel that tried to compensate for the very real obstacles to investigating in post-genocide Rwanda. These obstacles ranged from witness’s inability to cross borders from Arusha to Kigali or Goma due to fear of retaliation, or losing access to key witnesses during the rainy season, for example. Importantly, the Tribunal recognized these challenges, and facilitated sauf-conduits for refugee witnesses living in exile and arranged for defense witnesses to travel discreetly through Uganda or Kenya before flying to Arusha, knowing the risks that many witnesses cooperating with the defense could face. 

This pragmatism extended to the structure of the Tribunal itself. Sections of the ICTR Registry, such as the External Relations and Cooperation Section, worked directly with defense teams and did not require that all communication be funneled through the defense section, which reduced the lengthy bureaucracy often faced by defense teams at other courts. I was able to send all of my cooperation requests necessary for investigations, whether for immigration records, telecoms data, passports, or border entries, directly to this office. They acted as my voice in communication with foreign authorities, and the process worked efficiently. This enabled more direct communication, faster responses to cooperation requests, immediate visibility into the status of requests, and fewer errors caused by intermediary delays in reaching out to organizations or states. 

At the ICC, however, a multilayered and opaque system has restricted this direct access. As defense counsel, I am required to submit cooperation requests to the Counsel Support Section, which then forwards them to the External Relations Section. That office, in turn, transmits the request to the relevant country office. At no stage am I copied on the correspondence or allowed to follow up directly. This lack of trust in defense counsel creates unnecessary layers of bureaucracy and delay, and leads to duplication of effort. The result is a process that wastes valuable ICC resources and slows the defense’s ability to conduct timely investigations. These inefficiencies could be significantly reduced if the defense were trusted with direct access and support, as was the case at the ICTR.

Jurisprudence

When I compare my experience at the ICTR with what I have seen at the ICC, one of the most striking differences lies in the coherence and authority of jurisprudence. At the ICTR, appellate jurisprudence provided a clear legal roadmap. The ICTR Appeals Chamber judges were elected for four-year terms, but many were re-elected and remained for many years. As a result, there was consistency in how they approached the law. You knew where the judges stood on key points of law, on their interpretations, for example, of modes of liability, the chapeau elements of international crimes, defects of an indictment, or evidentiary provisions like hearsay or Rule 92 bis, which allows the admission of certain written testimony. These legal standards were clearly articulated and repeated over several decisions or judgments, and appellate jurisprudence was binding on the Trial Chambers. The principle of stare decisis, or reliance on precedent, was effective and applied, giving defense teams, the prosecution, and the judges a clear framework within which to operate.

This is not the case at the ICC. Trial Chambers are not formally bound by prior decisions of the Appeals Chamber, and the Court’s jurisprudence has developed in a manner that reflects a more case-by-case approach. The composition of Chambers evolves over time, as judges are elected for fixed nine-year terms and bring with them diverse legal backgrounds, professional experiences, and judicial traditions. These factors inevitably influence interpretative approaches and the weight accorded to prior decisions.

As a result, jurisprudence on key legal and procedural issues may vary between cases and across Chambers, even within the same situation. This diversity contributes to trials that can differ significantly in structure and approach, and to legal standards that may evolve differently depending on the composition of the Chamber seized of the matter. For example, I have seen completely different approaches taken to witness preparation, submission of prior recorded testimony under Rule 68(3) of the Rules of Procedure and Evidence, and the submission of evidence. In some cases, the same witness can testify in two different trials of the same situation, but the rulings on how their statements are treated will vary. This kind of inconsistency creates a lack of continuity and coherence in ICC case law and procedure, weakening the clarity of the judgements and rules that come out of the ICC, and undermining the certainty of the law for suspects and accused.

Powers

The ICTR was backed by the authority of the United Nations Security Council and Resolution 955. That gave the Tribunal real enforcement power. The Registry and the Office of the Prosecutor had the capacity to launch large-scale operations to apprehend the accused, and the Trial Chambers could issue binding decisions reminding states of their obligations under international law. That same power extended to the defense. We could request cooperation from states, and if a state failed to comply, the chambers could issue decisions of non-compliance. These mechanisms actually worked.

At the ICC, however, the Court must constantly negotiate with states as the powers of the Office of the Prosecutor and the Registry are significantly weaker. Whether it is the Prosecutor trying to secure the execution of an arrest warrant or the defense trying to obtain critical documents, everything depends on the political will of the state in question. When it is in a state’s political interests to protect a suspect, they often refuse to surrender them, regardless of the outstanding warrants or orders issued by the Court. Conversely, when a state sees an opportunity to dispose of an opponent, they will cooperate. That opens the door for politics to influence the administration of justice, creating the perception that the Court’s rules and decisions are applied inconsistently depending on the individuals involved, which ultimately affects the credibility of the ICC institution as a whole.

We have seen this play out in numerous situations. The Central African Republic, for example, has several outstanding arrest warrants that remain unexecuted, mainly because of political alliances between the accused and the current government. The current situation in Palestine has also laid bare the double standards at play. Many states have publicly stated that they will not arrest certain Israeli officials subject to ICC warrants if they enter their territory, despite having previously taken the opposite position regarding Russian officials under similar ICC warrants. Ultimately, this dynamic has contributed to one of the ICC’s most persistent criticisms—that it has focused only on African suspects. 

Beyond earlier examples, divergent state practice has become increasingly visible in the execution, or non-execution, of ICC arrest warrants. Recent developments involving Libya illustrate this inconsistency, with differing responses by States Parties to suspects subject to ICC warrants. Similar tensions have arisen in relation to the arrest warrant issued against the Russian President, notably in the differing approaches taken by States Parties such as Hungary and Mongolia. These developments echo earlier patterns observed in other contexts and have contributed to perceptions of selectivity and double standards in the enforcement of the Court’s decisions.

Such inconsistencies have inevitably affected the public image and perceived authority of the International Criminal Court. This is so despite the fact that those working within the institution are broadly committed to strengthening its legitimacy and effectiveness. Ultimately, however, the Court’s authority depends on state cooperation, and the political realities shaping that cooperation are closely linked to the ICC’s institutional design—particularly when contrasted with the ad hoc tribunals such as the ICTY and ICTR, which operated within a markedly different enforcement and political framework.

Tools

As defense counsel, we often have different tools at our disposal depending on the court in which we practice. At the ICTR almost everything was done on paper. It was slow but straightforward. We were not expected to manage large volumes of electronic data. While some digital tools did exist, like basic research software, they were clunky and often inefficient. For example, it would take a significant amount of time just to find a name within the prosecution’s disclosure documents. There was no easy way to search through material, which made building a case incredibly time-consuming.

The ICC, by contrast, is fully electronic. Everything from filing submissions to reviewing disclosure is done through digital platforms. On one hand, this makes things far more efficient, especially for teams working remotely. On the other, the systems are significantly more complex. There is a steep learning curve when you are new to the Court. But once you have adapted, the tools do help streamline some aspects of the work.

That being said, the real challenge today is not just adapting to new technology—it is the sheer volume of electronic evidence we now face. The volume of electronic evidence collected by the prosecution, or available for the defense to collect, has reached levels never seen before. The situation in the Central African Republic (CAR) serves as a telling example: the prosecution has described it as the largest collection of evidence it has ever handled. Now consider the scale of evidence in contexts such as Palestine-Israel, or Ukraine-Russia. The volume of videos posted online, social media data, and call data records is staggering—almost unimaginable. This explosion of digital evidence demands urgent procedural and technological adaptations by the ICC to ensure fair trial rights and equality of arms.

To maintain fairness, the ICC must swiftly adopt measures similar to those implemented at the ICTR and the Special Tribunal for Lebanon. For example, the Office of the Prosecutor at the ICC has acquired a new e-discovery and data analysis tool capable of managing and analyzing massive volumes of electronic evidence. It allows them to search, filter, and organize vast amounts of digital data before it is even disclosed. It is critical that this tool also be made available to the defense, in line with jurisprudence from both the ICTR and STL, which have both recognized the importance of equal access to technological tools used in the preparation of cases.

The Practice of Defense in International Tribunals

Cultural Considerations in Building a Defense Team

In an international setting the relevant cultural context does not only apply to the location of the tribunal and the state in which the accused is from, but also refers to the culture and backgrounds of Judges, witnesses, prosecutors, and local authorities. Culture shapes how witnesses answer questions, how judges interpret the law, how prosecutors present their cases, and how local authorities respond to defense requests. In order to successfully navigate this cultural context, defense counsel must be extremely adaptable, build a diverse defense team, and work to understand people from a variety of backgrounds. I myself have had to rewire some of the ways in which I was trained. What worked in my own legal culture did not always translate, and I had to be willing to listen and step outside that framework. Often, this meant relying on others and learning from colleagues from the situation country, and passing that knowledge down to others.

A strong defense team must reflect the diversity of the international environment in which we operate. It is not just about legal skill, but also about having a range of perspectives. Defense teams need to include people from different legal traditions, cultural backgrounds, nationalities, and genders. But beyond that, you want people who do not think exactly like you do. You want your biases checked, ideas challenged, and defense strategies tested. 

Having someone from the situation country is absolutely essential. They bring contextual knowledge and instinctive understanding that you simply cannot get from books or reports. For example, defense counsel does not approach a witness or navigate a courtroom the same way in different places and team members from the situation country can advise on culturally appropriate conduct, such as what gestures or language are considered respectful, and what should be avoided. Failing to understand local customs can unintentionally offend a witness and risk undermining their willingness to cooperate. 

At the ICTR, a Rwandan lawyer always sat beside the senior trial attorney of the prosecution during hearings. They communicated constantly, clarifying terms, explaining references, and helping ensure that testimony was understood in its proper context. On the defense side, having someone assist or check the defense’s interpretation helped to verify facts the witness mentioned in real time: who a public figure was, where a town was located, how many daily prayers occur in a particular region, etc. At the ICC, I have not seen the same kind of support. In cases from the Central African Republic or Democratic Republic of the Congo, there was no equivalent counterpart with deep local knowledge and authority alongside counsel.

Cultural Considerations for Witnesses, Judges, and National Authorities

Before working with a witness, I gather information about their background such as their gender, religion, education level, occupation, literacy, or social position. For example, I may assess whether they are a vulnerable witness or if there are religious sensitivities that should be respected. In cases involving allegations of sexual or gender-based violence, I consider what approach would ensure sensitivity and care. In some contexts, this may mean seeking the husband’s permission to speak with a woman or ensuring that a female team member is present during an interview. I also learn basic words and greetings in the local language which is a simple but meaningful sign of respect that often helps put the witness at ease from the outset.

In some places, witnesses perceive and relate to the world differently, such as in their perceptions of time and distance. A witness might say an event happened "during the rainy season" or refer to a local event, crop, or natural phenomenon to indicate a time period. They might refer to a location that was "a 15-minute walk away" rather than describe that location in terms of meters or kilometers. Importantly, insisting on rigid formats like exact dates or quantified distances might make someone uncomfortable, or even ashamed if they feel they are not answering “correctly,” which is not only unhelpful but can also affect the quality of testimony.

Culture not only influences witnesses, but can extend to judges as well. When preparing a defense strategy, I always research the bench. Where does each judge come from? What legal tradition shapes their thinking? What positions have they taken in the past? Knowing whether a judge comes from a common law or civil law background, and what issues they tend to be firm on, helps determine both legal arguments and courtroom advocacy. When preparing a point of law motion, I often reach out to a Judge from the same home jurisdiction as the presiding judge to ask how that issue is typically treated within their home jurisdiction and how the law might be interpreted. 

Dealing with national authorities, in particular, requires patience, perseverance, and a nuanced understanding of local dynamics. When I submit a cooperation request or seek to obtain documents from state authorities, I tailor my approach to what is needed within that local environment. Do I need to make an appointment? Wait in a hallway for hours? Should I express urgency or remain quiet? Each environment demands something different, and being an effective lawyer means knowing how to read those signals and adapt accordingly.

Building Relationships with Clients

Cultural differences also impact the client. Clients are diverse. One day you may represent someone who grew up in a rural village with little formal education, and the next, someone highly educated and part of their country’s elite. No two clients are alike. I adapt my communication style to their level of knowledge, their background, their personality, and their behavior. In some cases, that may also mean adjusting how I communicate with the client’s family. 

My job is not just to defend, but to inform. A client must be empowered to make decisions based on an informed understanding of the law, the strategy, and the risks as you are ultimately working under their instruction. Sometimes a client understands everything quickly. Other times, it takes hours of conversation, explaining the law in simpler or more familiar terms, or debriefing them extensively after a decision. There is also a psychological dimension to this work and engaging with the client. These are individuals under an immense amount of stress. Even when I know a particular decision or negotiation is in their best interest, I have to choose the right moment to bring it to them. You have to know when they are ready to engage in that conversation. 

Some of our clients come from civil law systems where cross-examination does not exist. When they enter the courtroom, they are confronted with an adversarial model they have never seen before. The disorientation they feel can affect how they testify, how they engage with the court, and how they understand the process. At the beginning, defense counsel does not automatically have the client’s trust. In fact, we expect the opposite. Most clients come into this process with deep suspicion. They have been arrested in their home country, flown to Europe, imprisoned, and brought into a courtroom full of foreigners. From their perspective, we are all part of the same institution that is trying to convict them, including the defense team. That perception does not go away just because I tell them I am acting in their interests. Trust is built slowly and through action. When a client sees me stand up in court and argue forcefully on their behalf—arguing with the Judge, arguing with the Prosecution, and taking every opportunity to object—that is when they begin to believe that you are truly working for them. 

I have seen how hard it can be to overcome these suspicions. At the Special Tribunal for Lebanon, for instance, Hezbollah told its members and supporters not to cooperate with the defense teams because we were seen as part of the court established to convict them. Even though we fought hard against this and even secured an acquittal the first time around, conducting investigations in Lebanon under those conditions was practically impossible.

As the relationship with the client builds, I listen carefully to assess whether trust is growing. I never hide anything from my client. As defense counsel you must be transparent. You tell him why you are negotiating something, and every time you are filing something. Then the client will understand why you are doing the things that you are doing and why it is in the client’s best interest. That is how you gain the client’s trust. Honesty, transparency, and patience are the three words I would use for building this relationship. 

Victim Participation at the ICC

One of the most distinctive aspects of practicing before the ICC is navigating the framework for victim participation. Unlike traditional adversarial systems, where only the prosecution and defense have roles in trial, the Rome Statute allows for victims, through their legal representatives, to present their views and concerns. Victims are not abstract characters, but are individuals who have suffered, and their experiences deserve to be acknowledged and interests represented. However, the extent to which victim participation serves its intended purpose depends on how the legal representative understands and approaches their role.

Under the Rome Statute, the role of victims’ counsel is to assist their clients in expressing how they have suffered and to communicate their concerns to the Court. Many victims’ representatives respect these boundaries and do not place their clients on the stand as factual witnesses, instructing them to refrain from commenting on the accused. Their statements focus on the impact of the crimes on their own lives, not on the guilt or innocence of the accused. In such cases, victim participation can contribute meaningfully to the accountability process without compromising its integrity. But in some other cases, victims’ representatives see themselves as a second prosecutor, actively seeking a conviction and demanding one. They encourage their clients to testify against the accused and pursue lines of questioning related to the charges, rather than limiting their role to presenting views and concerns. 

The defense is already entering cases years after the prosecution has begun its investigations. Our resources and time are limited. We plan our trial strategy based on the prosecution’s case and the evidence it presents. But when a victims’ legal representative decides to call their client as a factual witness, we are notified very late in the proceedings—after we have already done our fieldwork, made strategic choices, and submitted evidence. Suddenly you can have new witnesses, new allegations, new evidence, and new crime scenes that are introduced after the prosecution closes. In an adversarial system, there is no safeguard for this because in common law we do not have ‘two prosecutors’. 

No one denies that victims have suffered—many defense lawyers, myself included, believe deeply in the work of the ICC and other international tribunals in breaking cycles of conflict and ensuring that atrocity crimes are never repeated. Recognizing the victim’s voice helps to achieve this by restoring a sense of humanity to the accountability process. But accountability must be achieved through a fair process, and not at the expense of the rights of the accused. Victims’ voices should be heard, but always within the clearly defined limits of the Rome Statute. 

The appropriate venue for compensation for victims is at the reparations phase, supported by mechanisms like the Trust Fund for Victims. That is where recognition and redress can be meaningfully provided by a proper and fair reparation system. This is a critical stage, and I have seen firsthand what happens when there is no proper follow-through on reparations. At the Special Tribunal for Lebanon, even after a conviction, victims felt little closure. There was no compensation, no support, no material acknowledgment of their suffering. The trial may have ended, but nothing was repaired.

The current system for reparations at the ICC faces significant challenges in assessing and qualifying victim participation, particularly in complex, conflict-affected contexts. The ICC, NGOs, and UN programs offer benefits to those who qualify as a victim and some people apply because they are desperate—because their families are hungry, their homes are gone, and their livelihoods destroyed. In many situations, victims have suffered profoundly, because of the conflict itself and, in some cases, as a result of the acts of alleged perpetrators. However, while the harm experienced is real and often acute, the causal link to a specific suspect or accused is not always straightforward. Their suffering and need for financial support is real, even though their qualification as a victim in a particular case may not be. 

At the same time, the ICC has become a focal point of hope for many affected communities. Expectations have been created, sometimes understandably so, that recognition as a victim before the Court will translate into tangible assistance or financial support. These expectations have contributed to reparations proceedings involving extremely large numbers of victims. In the case against Thomas Lubanga Dyilo, for example, the number of former child soldiers assessed in the reparations phase reached into the hundreds of thousands. This situation is completely unmanageable and unrealistic.

Similar dynamics can be observed in other cases. Despite the very substantial reparations awards ordered in the cases of Bosco Ntaganda and Dominic Ongwen, it is my understanding that, to date, no reparations have yet been effectively distributed to victims. The process appears highly complex and lengthy, and the gap between judicial decisions and their concrete implementation risks deepening frustration among victims whose hopes and expectations remain unmet.

This situation suggests that reparations mechanisms may benefit from a more focused approach, one that prioritises direct victims with a clearer nexus to the crimes for which an accused has been convicted, while still recognizing the broader suffering caused by conflict. There must be a way to reconcile legal precision with the humanitarian realities faced by affected populations. The challenges are compounded by the limited resources available to the external teams of legal representatives of victims during the reparations phase, which often restricts their ability to conduct field missions, consult meaningfully with clients, and follow up on implementation. This, in turn, affects both the expeditiousness of proceedings and the depth and quality of the reparations debate.

The problem is compounded by the limited transparency afforded to the defense. Unless a participating victim also appears as a witness, the defense has no access to the victim’s identity and little to no information regarding who is participating in the proceedings. In the absence of identities or basic factual information, the defense is unable to verify whether the legal criteria for victim participation are met. This lack of disclosure affects not only the fairness of the proceedings but also the integrity of the reparations process as a whole. Defense counsel are officers of the Court, bound by strict confidentiality obligations and professional codes of conduct. Disclosure of victim identities to the defense, subject to appropriate protective measures, would not place victims at risk but would instead enable meaningful verification and contribute to a more balanced process.

Importantly, these limitations also have consequences for genuine victims, including indirect victims. Experience has shown that instances of fraudulent participation have come to light only where victims also held witness status or otherwise had a dual role in the proceedings. In other cases, where the defense does not receive the victim application forms or sufficient underlying information, it is simply not in a position to carry out comparable verification. The presence of fraudulent or ineligible participants inevitably affects the allocation of limited reparations and risks diluting the relief available to those victims who are directly and legitimately entitled to it.

We do not distribute or disclose the identities of prosecution witnesses, who benefit from protective measures, and in the same way will never disclose the identities of victims. But when someone is described as a child soldier and later turns out to have been 20 years old at the time of recruitment, or when a person claims to be displaced but has in fact always lived in the same home, it reveals a serious gap in the verification process. Such errors damage the credibility of the Court and dilute the meaning of victim participation. If a conviction occurs, the reparations should be directed to genuine victims, not to individuals who do not meet the criteria of the process.

The current approach also delays justice for genuine victims. Because the bar for inclusion is so low, many applications are not properly checked at the outset and many non-qualifying victims participate. Only during the reparations phase does the Registry filter the list of victims based on the criteria to determine who should receive the benefits. This wastes time, doubles the workload, and drains resources that could be better used to support actual victims. Eligibility should be properly assessed at the start, not the end. In addition, I believe that reparations should not be tied exclusively to convictions. Conflict always produces victims, regardless of who is eventually found guilty. There must be a way to acknowledge and support those individuals without victims having to rely solely on convictions.

Future of the ICC

If the ICC’s mission is to fight impunity, it must remain above political pressure. Yet recent developments have raised serious concerns about the Court’s independence. In the Palestine situation, the ICC Prosecutor announced his application for arrest warrants publicly—before the warrants had been granted, confirmed, or published by the Court. This was a clear departure from the approach taken in the Ukraine situation, where the names of high-ranking officials subject to warrants were only disclosed after the Pre-Trial Chamber had issued the warrants under seal.

The public announcement in the Palestine situation sparked a wave of external pressure, including from non-State Parties and some State Parties. The situation escalated to the point where the United States sanctioned four ICC judges, undermining the Court’s perceived independence and eroding the Court’s institutional resilience. Normally, applications for arrest warrants are filed under seal to preserve the integrity of the judicial process. This allows judges in the Pre-Trial Chamber to assess the evidence and deliberate independently on whether to confirm the arrest warrant, free from outside influence or pressure. While there may be exceptional circumstances where public disclosure of an application is justified—for example, to facilitate cooperation or enhance the collection of evidence—this must remain the exception, not the rule.

The turmoil generated by the premature publicity surrounding certain arrest warrant applications demonstrated the very real risks associated with departing from this approach. In response, ICC judges themselves acknowledged these concerns and subsequently amended the applicable framework governing the publicity of arrest warrants, reaffirming that confidentiality is the default and that publicity must be carefully circumscribed. This evolution underscores the recognition that undue disclosure opens the door to political interference. When external actors are drawn into the process before an application is properly assessed, or when amicus curiae submissions are entertained without access to the underlying evidentiary materials, the proceedings risk becoming politicized. Such developments threaten to undermine the Court’s independence and, ultimately, its legitimacy.

Conclusion

Defending before the ICC requires navigating a complex and evolving legal terrain. The Court’s hybrid procedural framework, drawing from both civil and common law traditions, was conceived as an inclusive model, yet in practice it has generated significant operational challenges. These include lengthy proceedings, procedural fragmentation, and heavy administrative demands, all of which affect the pace and efficiency of trials. Beyond these structural features, a persistent lack of institutional trust in the defense has contributed to layers of bureaucracy and resource-intensive processes that could, with greater confidence in defense teams as officers of the Court, be substantially streamlined. Reducing the number of formal communication channels through which defense counsel must operate would alone alleviate unnecessary delays and administrative burdens, without compromising fairness or transparency.

Importantly, the way defense counsel operate at the ICC extends well beyond legal strategy. Defense teams engage daily with profoundly human realities: clients facing life-altering charges, witnesses and victims shaped by conflict, and field investigations conducted under difficult and often dangerous conditions. Professionalism, adaptability, and ethical responsibility remain central to this work, particularly in politically sensitive and high-profile cases.

One structural issue nevertheless warrants reflection: the enduring mistrust of the defense, which continues to shape institutional practices and perceptions. This mistrust has tangible consequences. In some instances, it has resulted in extensive redactions, restricted access to materials, and heightened scrutiny of defense activities, sometimes linked to Article 70 proceedings against defense team members—such as in the Bemba et al. case, or investigations touching defense teams or accused in Ngaïssona and Ntaganda. While accountability mechanisms are essential, their selective visibility risks distorting the institutional narrative surrounding defense conduct.

This imbalance becomes more apparent when contrasted with the treatment of other actors. In Lubanga, despite judicial findings that intermediaries had participated in the fabrication of evidence, no Article 70 proceedings were initiated against them. Similarly, in the Yekatom case, the defense raised and substantiated allegations of evidence fabrication involving intermediaries and alleged child soldier witnesses and participating victims. These arguments led the Prosecution to withdraw reliance on certain witnesses and ultimately contributed to the acquittal of Mr. Yekatom on all charges related to child soldiering. Yet, to date, no known proceedings were initiated against those who allegedly falsified age or group affiliation. The absence of equivalent scrutiny across actors inevitably shapes perceptions of fairness and fuels the very mistrust that the system seeks to prevent.

Had the ICC adopted an institutional model providing for an independent prosecutorial mechanism for Article 70 investigations, similar to those employed at the ICTR or the Special Tribunal for Lebanon, the focus of such proceedings might have been more evenly distributed. Instead, the recurrent association of Article 70 investigations with defense teams risks reinforcing a narrative that undermines confidence in the defense as a pillar of the justice process.

Looking ahead, meaningful progress will depend not on diminishing the role of victims or their representatives, but on recalibrating institutional trust. Greater confidence in defense counsel, more proportionate administrative controls, improved disclosure practices, and streamlined procedural pathways would enhance both efficiency and fairness. Ensuring that all actors—prosecution, defense, intermediaries, and witnesses—are equally accountable for interference with the administration of justice is equally essential. In doing so, the Court would strengthen its legitimacy and better align its practices with the principles that underpinned its creation. Defense counsel will continue to safeguard due process and fair trial rights, ensuring that the promise of international justice is fulfilled not only in outcomes, but in the integrity of the procedures themselves.

Defending before the International Criminal Tribunal for Rwanda - An Interview with Philippe Larochelle

Defending before the International Criminal Tribunal for Rwanda

An Interview with Philippe Larochelle

Edited by Cailan Cumming, Kate Gibson & Paul R. Williams

A Note on Defending Justice

This blog is part of the Defending Justice series, an initiative of the Public International Law and Policy Group (PILPG) to promote an eclectic array of  voices within the field of international criminal law. 

As part of our broader efforts to strengthen institutions of justice, this series seeks to create space for dialogue around the varied perspectives and concerns that shape these institutions. With that aim in mind, we interviewed a series of defense practitioners working in international criminal law and distilled their experiences and insights into a series of first-person blogs, preserving the spirit and voice of those interviews.

Editor’s Note

Philippe Larochelle, widely regarded as one of the leading lawyers in international criminal defense, has built his career representing clients in some of the most complex and high-profile international cases. The ability to navigate political and procedural challenges of international law quickly positioned him as a key figure in the international defense field. His commitment to due process, fairness, and the protection of fundamental legal rights, even in cases where public sentiment strongly favored conviction, has built his reputation across multiple international tribunals, including the International Criminal Tribunal for Rwanda (ICTR), International Criminal Court (ICC), and the Special Tribunal for Lebanon. This blog explores the challenges and lessons that emerged from his particular set of cases before the ICTR. Through Larochelle’s setbacks and triumphs within the world’s second international tribunal, readers get a glimpse into the case preparation and trial process for these complex cases, and better understand the way in which these tribunals shape the legacies of conflict. Through Larochelle’s stories one thing becomes clear: uncovering the truth can only be accomplished through objective institutions, counsel, and judges; strong standards of evidence and procedure; expeditious trials; and stronger mechanisms to assess victims and witnesses. 

Introduction

I became involved with the ICTR at a time when international criminal defense required both common law training and fluency in French. As a native of Quebec, I found that this combination of abilities positioned several Canadian lawyers to take on key roles as defense counsel at the Tribunal. It was in this environment that I began working alongside a group of lawyers who would go on to shape the practice of international criminal defense.

One of my most formative cases was that of my first client, Jérôme Bicamumpaka, a Rwandan government official accused of genocide, conspiracy to commit genocide, and crimes against humanity. The case was particularly challenging due to the difficulties in proving individual criminal responsibility within the broader context of mass atrocities. Prosecutors alleged that Bicamumpaka, as Minister of Foreign Affairs in the interim government during the 1994 genocide, played a role in facilitating the violence. However, after years of legal battles, he was acquitted in 2011 due to insufficient evidence, a verdict that showed a failure to establish individual culpability from broader systemic crimes.  This case profoundly influenced my understanding of international criminal defense and became a defining moment in my career, shaping my approach to defending individuals accused of mass atrocities for years to come.

I then defended Callixte Nzabonimana, a former Rwandan minister convicted of genocide in 2012. The ICTR found him personally responsible for inciting and organizing killings, particularly through public speeches encouraging violence, and his conviction was upheld on appeal in 2014, reinforcing the precedent of holding political figures accountable for speech that contributes to mass atrocities. In contrast, my work with client André Ntagerura, who was acquitted of genocide charges in 2004, focused on the significant challenge of assisting Ntagerura’s relocation, as acquitted defendants often face difficulties in resettlement after trials due to political and diplomatic blocks, or threats, to their relocation.

I also represented Jean De Dieu Ndagijimana, who was charged with contempt of court related to witness protection, following his role in facilitating the recantation of prosecution witnesses who had testified against Augustin Ngirabatware, but who years later wanted to give statements saying that their testimony had been false. More recently, I have representedf Fulgence Kayishema, a Rwandan genocide suspect who was recently detained in South Africa under an arrest warrant by the International Residual Mechanism for Criminal Tribunals. His potential extradition remains uncertain and raises questions regarding jurisdiction and fair trial rights, issues the defense team is currently working through.

Other cases I have taken on underscore the continued and extensive work that defense lawyers undertake post-conviction. The case of Gérard Ntakirutimana, a Rwandan doctor convicted of genocide and crimes against humanity in 2003, remains under review and certain elements of his case are being reconsidered. I also continue to support Dominique Ntawukuriryayo’s request for a reduced sentence, who was convicted of genocide by the ICTR in 2009 and sentenced to 25 years in prison.

This blog will further explore these cases, and I hope readers will gain insight into the day-to-day realities of international criminal defense, the evolving nature of post-conflict justice, and the lasting impact these trials have on both individual defendants and the broader field of international law.

International Criminal Tribunal for Rwanda

The Rwandan genocide of 1994 remains one of the most tragic periods in modern history, deeply affecting both Rwanda and the international community.  Over the course of approximately 100 days, an estimated one million people—primarily Tutsi, along with moderate Hutu and others who opposed the government—were killed in a wave of violence carried out by government forces, militia groups, and civilians. The genocide was the culmination of longstanding ethnic and political tensions, exacerbated by colonial history, economic disparities, and a period of civil war.

In the aftermath of the genocide, Rwanda faced the immense challenge of rebuilding its society while ensuring accountability for crimes committed. The scale of the violence, combined with the destruction of Rwanda’s judicial infrastructure, made it difficult to prosecute cases through domestic courts alone.  In response, the United Nations established the International Criminal Tribunal for Rwanda on November 8, 1994, through Security Council Resolution 955.  Headquartered in Arusha, Tanzania, the ICTR was tasked with prosecuting individuals responsible for genocide, war crimes, and crimes against humanity, focusing on high-ranking officials, military leaders, and key organizers of the violence.

Beyond its prosecutions, the ICTR played a critical role in developing international legal precedent. In 1998, it issued the first-ever conviction for genocide in an international court with the Jean-Paul Akayesu case, which also set an important precedent by recognizing rape as an act of genocide. The tribunal also addressed the role of hate media in inciting violence, convicting individuals found to be responsible for the broadcasts of Radio Télévision Libre des Mille Collines (RTLM) and other propaganda outlets that played a role in encouraging mass killings. 

In 2015, the ICTR officially completed its work, having adjudicated dozens of cases. However, its remaining functions were transferred to the International Residual Mechanism for Criminal Tribunals (UN-IRMCT), which is currently concluding its work to oversee appeals, enforce sentences, and locate fugitives.  The UN-IRMCT continues to handle ongoing legal matters, including cases like that of my client Fulgence Kayishema, who was detained in South Africa and awaits potential extradition.

The ICTR’s legacy extends beyond Rwanda. It contributed to the establishment of legal principles that continue to guide international criminal law, influenced the development of the International Criminal Court, and reinforced the importance of accountability for mass atrocities in post-conflict states. At the same time, its flaws, highlighted throughout this blog, remind us that the creation and implementation of international criminal justice frameworks must continue to be reformed to fulfill the promises set out by the international justice project.

Case Preparation

I will never forget my first encounter with the case file of my first case, Jérôme Bicamumpaka. The allegations were gruesome and grave. Yet, when I met Bicamumpaka, I was presented with a polite, articulate man—well dressed and measured in speech. Reconciling this outward demeanor with the horrific accusations in the file proved difficult at first. But it was also an important first lesson regarding the nature of defense: to look beyond first impressions, confront personal preconceptions, and maintain objectivity. My role was not to react emotionally to the allegations, but to get to know the deeper truths of the client: understand his story and the conflict that led to my client’s arrest. With limited knowledge of the Rwandan genocide, I immersed myself in the complex historical, social, and legal context of the conflict, having to adapt quickly to the new context and new legal system of the ICTR.

As I began building a defense strategy, the early meetings with the client were pivotal. Working through the details of the case and walking through each charge was an important first step, and proved to be key to Bicamumpaka’s defense. Bicamumpaka claimed not to have been present at the times and places of the alleged crimes, and it became clear that he had an alibi to support these claims. In fact, Bicamumpaka maintained that he had been trying to help de-escalate the situation from abroad during key periods of the genocide. Amongst such serious allegations, I found myself drawn into the evidence, trying to understand what had really taken place. We were able to call a Belgian Minister as a witness, who testified that Bicamumpaka was in Belgium during one of the events he was accused of orchestrating and supported the fact that Bicamumpaka was actually working to garner international help for Rwanda during the genocide while he was abroad. 

Examining the extensive evidence with the client can also help to identify inconsistencies and expose weaknesses in the prosecution’s evidence. For example, during Bicamumpaka’s first interview with the prosecution, he provided an alibi for specific crimes he was accused of, which the prosecution failed to remember. During the trial, the prosecution continued to present arguments that overlooked this key information—information that was later presented by the defense—leading to obvious gaps in the credibility of the prosecution’s case. 

Throughout this process I benefited greatly from the support and camaraderie of the international legal community in Arusha, Tanzania, where the Tribunal was located. For a young lawyer, the weight of responsibility was immense, but the experience was transformative. I was deeply involved in the investigative aspects of the case and grew rapidly through direct engagement with witnesses, files of evidence, and defense strategy. It was in this demanding but collaborative environment that my commitment to defense work developed, and where I learned that effective defense begins not with certainty, but with humility, persistence, and the willingness to listen.

The Nature of Complex International Crimes Cases

The scope of the crimes dealt with in international tribunals is so vast that it can be difficult to comprehend. The crimes committed almost feel immaterial because of their magnitude. These cases are not isolated events but involve the horrors of genocides, mass atrocities, and the suffering of entire populations. Consequently, the evidence presented in such cases is often overwhelming, and it becomes increasingly difficult to apply the usual, rational standards of evidence typically seen in other legal proceedings.

A significant challenge in international criminal cases is the reliance on witness or victim testimony as a principal form of evidence. While these testimonies may be grounded in real, traumatic experiences, they often fail to meet the threshold of ‘beyond a reasonable doubt.’ However, rather than the prosecution having to prove ‘beyond a reasonable doubt’, the burden often falls on defense counsel to actively prove their client’s innocence to secure an acquittal. This shift in burden of proof, in my experience, creates an inherently biased environment for the accused, with presumption of guilt often outweighing the presumption of innocence.

In several of my cases the defense was faced with testimonies where the victim’s suffering was undoubtedly real, but the evidence connecting the accused to the crimes was non-existent. The Bicamumpaka case, for example, relied heavily on witness testimonies that lacked the necessary corroboration or, at its worst, was manufactured in order to fit a false narrative of the accused. The judges, in some cases, did not adhere to rules of evidence, but rather assessed evidence as the trial progressed, making it hard for the defense to anticipate how evidence would be treated and making it more difficult to build a case.

The reliability of witnesses is another major challenge that defense counsel contend with. I recall the story of one witness who, after being informed he could not seek asylum after testifying in a case in Canada, recanted his previous testimony—revealing that he had lied to further his interest in gaining asylum. This example highlights the serious issue of witness manipulation, especially when victims and witnesses are offered benefits such as reduced sentences in their home countries or asylum in exchange for testifying. Some witnesses have admitted to fabricating stories to make themselves more credible to gain access to compensation and other benefits.

What is more, many of the witnesses are anonymous, which presents difficulties in verifying their testimonies, their credibility as a witness, and tracking their testimonies across multiple cases. There have been instances where witnesses recanted their statements, yet those recantations could not be used to reopen or reassess a case unless the other testimonies also changed. This dynamic can lead to wrongful convictions, especially when false testimony goes unchecked or is shielded by anonymity.

Beyond evidentiary challenges, there is also the issue of bias towards the prosecution. Many of the judges of international tribunals are not seasoned jurists but diplomats who may not have the requisite experience to assess evidence impartially. This lack of qualification, combined with a tendency to favor the prosecution, can result in judgements that do not reflect the reality of the evidence presented. I believe there are some cases in which judges have appeared to let their personal feelings about the victims’ suffering cloud their judgment, making it harder for them to maintain the required objectivity. Faced with a flood of testimony detailing unimaginable atrocities, it is understandably difficult to remain impartial, but impartiality is precisely what justice demands.

Additionally, the long duration of these trials, with some lasting over a decade, severely impacts the integrity of the cases. Memories fade, evidence becomes stale, and the accused are subjected to years of legal uncertainty. In my experience, protracted legal proceedings often infringe on the rights of the accused. In one such example, one of my clients spent several months in prison, only to have his charges dismissed after an argument that only lasted three hours, meaning that he had been unjustly detained without sufficient grounds.

To address these issues, an independent review of evidence before indictment should be conducted, as seen in the case of Israeli Prime Minister Benjamin Netanyahu, where ICC Chief Prosecutor Karim Khan convened a panel of external legal experts to review the evidence he ultimately used to support his application for arrest. This would ensure that charges are based on credible and verified evidence, reducing the likelihood of wrongful prosecutions. Additionally, there should be stronger standards for assessing victims and witnesses to avoid manipulation, ensure that testimonies are accurate, and verify that the testimony is linked to the client. Moreover, victim reparations should not be tied directly to the outcome of criminal trials, as this creates an inherent conflict of interest that may lead to fabricated testimonies. Lastly, I argue for the establishment of clear and fair rules of evidence, which should be consistently followed by all judges. Only by adhering to these principles can the integrity of the tribunal and the pursuit of justice be preserved. 

Legacy of the International Criminal Tribunal for Rwanda

The International Criminal Tribunal for Rwanda was established with the mandate to prosecute those most responsible for the 1994 genocide, to end impunity, and to help establish a historical record of the events. However, the legacy it leaves behind is one mired in contradiction—where the pursuit of justice became inseparable from the pursuit of political objectives.

Rwanda, under the leadership of the Rwandan Patriotic Front (RPF), quickly understood how to wield the ICTR as a tool of lawfare. It used the tribunal to legitimize its own narrative of the genocide while shielding its crimes from scrutiny. When international investigators attempted to look into acts like the downing of President Habyarimana’s plane—a critical trigger for the genocide—Rwanda impeded efforts to investigate. The Rwandan Patriotic Front continually refused to provide witnesses or evidence and instead turned over only political opponents. The tribunal, lacking enforcement power and dependent on Rwanda for access, effectively became complicit in this selective justice.

International tribunals have the capacity to shape domestic and global political landscapes for decades. Once an individual is indicted, regardless of guilt, their political and social life is effectively over. The Rwandan government has long exploited this reality, feeding narratives to the media, fueling continued arrests, and portraying all members of the pre-genocide Hutu political elite—ministers, préfets, military leaders—as inherently culpable, regardless of their actual role in the genocide. While some may indeed have played a role in the genocide, the concern lies in how the Rwandan Patriotic Front, led by Paul Kagame, has fabricated or distorted evidence against those not involved to attribute a blanket collective responsibility on the Hutu political elite from before the genocide. Ultimately implicating them based not on actions but on influence and perceived political threat, hence using the tribunal to eliminate the Rwandan Patriotic Front’s main threats to power.

This manipulation hollowed out the ICTR’s intended impartiality. Rather than establishing a comprehensive factual record of the genocide, the tribunal was instrumentalized to reinforce a singular, simplistic version: one in which Hutu extremists were the sole perpetrators, and the Rwandan Patriotic Front were the liberators. The reality, however, was far more complex and the genocide was perpetrated by a diverse group of people. Atrocities were committed by a range of actors, including the Rwandan Patriotic Front, yet none of its members were ever indicted. The tribunal’s promise to hold “those most responsible” to account was not fully realized. Instead, it has been seen by some as granting a degree of impunity to the Rwandan Patriotic Front and President Kagame’s regime,  effectively legitimizing their control, justifying their actions, and limiting the voices of its critics.

Rwanda has also leveraged foreign domestic jurisdictions to target its opponents. In Canada, for instance, the government prosecuted Jacques Mungwarere, an alleged Rwandan genocide suspect, under universal jurisdiction, which was Canada’s last criminal trial of this kind. Since then, Canada has largely moved away from complex criminal prosecutions, favoring administrative laws instead. By relying on lower-threshold immigration standards such as a “reasonable belief” of involvement in atrocities, authorities have deported alleged perpetrators, a shift Rwanda has capitalized on by using these mechanisms to pursue political dissidents living abroad.

These failures have lasting consequences. The selective justice, and selective narrative, perpetrated by the ICTR undermines confidence in the legitimacy of both convictions and acquittals. The ICTR’s findings are now cited to justify Rwanda’s current foreign policy, including its support for the M23 rebel group and its military presence and crimes committed in the eastern Democratic Republic of the Congo. Western states, still constrained by guilt over their inaction during the genocide, continue to give Rwanda a wide berth. The power of the narrative produced by the tribunal has outlived the tribunal itself, shaping international politics decades later.

Justice Richard Goldstone, the first Chief Prosecutor of the ICTY and ICTR, articulated five goals of the tribunals, often referred to as the ‘Goldstone Five’: deterrence, establishing a historical record, victim catharsis and justice, ending impunity, and contributing to peace and reconciliation. Overall, the ICTR has fallen short of the goals laid out by the Chief Prosecutor; however, there is hope that future tribunals can deliver on these goals if key questions are addressed and substantial reforms are implemented.

The Future of International Criminal Tribunals

Looking forward, the international justice system must confront these uncomfortable realities. The manipulation of evidence, reliance on questionable witnesses, and failure to prosecute powerful actors are not problems unique to the ICTR—they are recurring flaws that continue to plague tribunals, including the ICC. The Timor-Leste tribunal provides a compelling precedent. A special expert committee was established to assess the justice delivered, eventually reopening some cases in which they believed that justice had not been served. A similar approach should be applied to the ICTR and future international tribunals. Allowing for independent review of the work of the tribunal would be a meaningful step toward restoring legitimacy and true justice to the victims. However, international tribunals are unwilling to admit fault in order to protect their legacy, and residual mechanisms are interested in closing the work and the history books. 

Today, the UN-IRMCT, the successor to the ICTR, is winding down. But the same ethical and legal questions remain unresolved. Take the case of Fulgence Kayishema. Although the UN-IRMCT has pushed for his extradition from South Africa, it has no intention of trying him itself. Instead, it seeks to send him to Rwanda, despite well-documented risks that he may not receive a fair trial. South Africa is hesitant knowing that he may be sent to Rwanda given the country’s history of assassinating political opponents on South African soil and refusing to turn those responsible over.

These dilemmas raise urgent questions about the long-term design of international justice mechanisms. I find it legally and ethically incompatible with the UN-IRMCT’s mandate and jurisdiction to arrest individuals only to transfer them over to the referral state, especially when due process cannot be guaranteed in the state. I am also concerned with the prospect of handing over the court’s archives, an essential repository of history and evidence, to a government that has shown a willingness to manipulate history and suppress dissent. As the UN-IRMCT prepares to close its doors, these unprecedented challenges have exposed the overall lack of foresight and long-term planning when first establishing the ICTR.

Looking at the long-term future of international criminal justice, I hold the same opinion as many defense lawyers, that at the ICC arrest warrants should be issued and publicized with great care, not symbolically or for political effect. Issuing warrants without realistic prospects for enforcement, such as the ICC’s warrant for Vladimir Putin, weakens the legitimacy of the entire system. Worse, the legacy of selective justice in many situation countries has eroded public trust in international tribunals, prompting some to view such warrants as politicized instruments rather than impartial legal measures, thereby reframing individuals like Putin as targets of geopolitical bias rather than perpetrators of international crimes.

Finally, and critically, we must continually reassess the very model of international criminal justice. Is a traditional courtroom—where a single suspect stands trial for atrocities affecting thousands of victims—the best structure for addressing such massive and complex crimes? So far, efforts to centralize victim suffering into one symbolic trial have not achieved the goals of victim catharsis and justice. These shortcomings should be a central consideration in the design of future international tribunals. 

Justice must not operate in isolation from the societies it seeks to serve; it must work in tandem with domestic efforts and remain rooted in the lived experiences of affected communities. The international justice project is far from perfect, but its deep flaws are precisely why it must be preserved and reformed—not abandoned. Moving forward requires the humility to learn, the courage to evolve, and the resolve to repair what is broken.

Conclusion

International criminal tribunals are among the most complex and challenging legal environments in the world. The crimes they address are extraordinary in scale and scope, requiring legal practitioners to operate in equally extraordinary ways. Defense counsel, in particular, must navigate a system where traditional legal frameworks are stretched, where the political context shapes the courtroom, and where the weight of history looms over every decision.

This chapter has traced the unique legacy of the International Criminal Tribunal for Rwanda, highlighting how international tribunals do not merely adjudicate facts—they also shape historical memory, political narratives, and international relations. In doing so, they carry immense responsibility. Yet, as we have seen, this responsibility can be compromised when justice is politicized, when the rights of the accused are overshadowed by prosecutorial bias, or when credibility in evidence and witness testimony is sacrificed for expediency.

These challenges demand not only legal expertise, but also resilience, creativity, and ethical fortitude. They demand defense teams that can operate with extreme adaptability—developing unique strategies, cultivating deep knowledge of both law and the local context, and holding their ground in a professional landscape that is often politically charged and emotionally fraught.

Tribunals can play a vital role in building peace, establishing historical truth, and promoting reconciliation. But as the ICTR has demonstrated, they can also be weaponized for political gain, producing partial narratives and reinforcing impunity when justice is selectively applied. The cost of these failures is not merely legal—it is human. It is borne by victims denied the full truth, by accused persons denied a fair trial, and by entire societies burdened with unresolved histories.

Looking ahead, the international legal community must critically reflect on the shortcomings of the ICTR and implement reforms to improve the international justice system. Specific reforms include:

  • Establishing independent expert committees to assess evidence and review problematic cases.

  • Applying stronger and clearer standards for evaluating the credibility and testimonies of witnesses and victims.

  • Selecting judges with proven qualifications, legal rigor, objectivity, and sensitivity to the broader social and political dynamics at play.

  • Strengthening due process protections and upholding the fundamental rights of the accused.

  • Reducing excessive delays in trials and delivering timely judgments.

  • Carefully reviewing evidence before issuing indictments, rather than relying on quantity or political pressure.

  • Ensuring that, after release, acquitted or freed individuals can access safe relocation options, including family reunification, work, and residency rights in safe third countries.

Defense counsel will remain at the heart of this effort, not only as advocates but as guardians of justice in a system that too often struggles to balance law with politics and truth with power.

Forget the Debate on Peace Versus Justice. Ukraine Has Set the Stage for Peace With Justice!

Forget the Debate on Peace Versus Justice. Ukraine Has Set the Stage for Peace With Justice!

By: Dr. Paul R. Williams,* Dr. Beth Van Schaack,** Professor David Crane,*** and Sindija Beta.****

Recent efforts to reach a ceasefire and potential peace arrangement to end Russia’s war of aggression against Ukraine have again brought to the fore the tension between achieving peace and delivering justice in the wake of atrocities. For much of the twentieth century, those negotiating peace deals were either silent about the imperative of justice or negotiated it away. Indeed, many peace agreements and arrangements routinely incorporated blanket amnesties, trading accountability for the promise of stability and calm. The Évian Accords in Algeria, the National Reconciliation Law in Guatemala, the Lomé Peace Accord in Sierra Leone, and the “Due Obedience” and “Full Stop” laws in Argentina all exemplified this approach. These amnesties may have encouraged combatants to lay down their arms and helped end the fighting, but they left societies fractured, victims silenced, and perpetrators free to return to positions of power. 

Ultimately, many of these amnesties did not hold as national and international courts declared them unconstitutional and/or inconsistent with the nation’s human rights obligations. Argentina, for example, has prosecuted hundreds of individuals who stood accused of committing grave crimes during the country’s “dirty war.” The experience of Sierra Leone and Cambodia demonstrates that even negotiated amnesties do not shield perpetrators from subsequent international justice mechanisms; nor do they override the treaty-based legal obligations of states to prosecute atrocity crimes.

Russia has committed aggression, war crimes, crimes against humanity, and other atrocity crimes, not only in Ukraine but also in Georgia, Syria, Chechnya, and elsewhere; to date, perpetrators have largely suffered no tangible consequences for their crimes. No surprise that Russia supported the inclusion of a blanket amnesty provision in the Istanbul 2022 Communiqué, which was proposed in the early stages of the full-scale invasion, and again, almost as an afterthought, at the very end of the 28-point peace plan that the United States and Russia crafted in the second half of 2025. Russia no doubt assumed that Ukraine, and the international community, are so exhausted by war that no one would object to once again trading away justice for peace. What Russia, and those urging a broadscale amnesty as the only option for ending Russia’s war of aggression, ignore is that a decentralized accountability infrastructure is already in place and has already been activated. As such, it is beyond the power of Russia, and even Ukraine, to forsake justice and entrench impunity entirely. 

Indeed, justice efforts have been underway since before Russia’s full-scale invasion in February 2022. Some cases—involving the downing of MH17, proceeding in Ukraine’s domestic courts, and asserting state responsibility before the European Court of Human Rights—are already the subject of final and binding judgments. More than a dozen states—in the region and beyond—have initiated investigations into Russian atrocities, sharing information and strategies through a joint investigative team and the Eurojust network (the known cases are compiled here). Non-governmental organizations are collecting information and creating perpetrator dossiers to support additional proceedings. The International Criminal Court, despite all its recent faults and challenges, has asserted its jurisdiction and has already issued six arrest warrants, which will not be withdrawn even if an amnesty is included within any peace deal. And the Council of Europe, in collaboration with Ukraine, is marching forward with its establishment of the Special Tribunal for the Crime of Aggression against Ukraine and a Register of Damage. These justice efforts cannot be derailed or blocked by those sitting around the negotiating table.

As argued by this article’s authors here and here, Ukraine has embraced lawfare, the strategic use of legal tools to achieve political, military, and diplomatic objectives. Lawfare is not limited to courtrooms. It operates in the realm of public opinion, delegitimizing Russian aggression; in the halls of multilateral organizations, mobilizing new mechanisms of justice; and on the battlefield, signaling that Russian crimes will be documented, prosecuted, redressed, and remembered. This strategy has allowed Ukraine to shift the global conversation from geopolitical bargaining to legal responsibility. It has framed the war not as a defensive maneuver by Russia or even a territorial dispute but as a grave breach of the international order, one that demands accountability rather than accommodation.

The irreversibility of Ukraine’s accountability trajectory is reinforced by decades of developments in international law, which have steadily shifted from permissive attitudes toward amnesty to a clear expectation of accountability for atrocity crimes. Key treaties establish this foundation. All four of the universally-ratified Geneva Conventions—which govern Russia’s war of aggression—obligate states to search for and prosecute those responsible for grave breaches during international armed conflicts. Customary international humanitarian law is in accord. Article 2(3) of the ICCPR and Article 13 of the European Convention on Human Rights likewise require states to ensure effective remedies for serious human rights violations, even when those violations are committed by state actors operating in an official capacity.

International courts and human rights bodies have converged around the principle that amnesties are unlawful and need not be respected if enacted in response to serious international crimes. The Extraordinary Chambers in the Courts of Cambodia articulated this consensus, noting that emerging international practice prohibits amnesty for crimes such as genocide, crimes against humanity, and war crimes. The European Court of Human Rights has similarly held (see here and here) that amnesties for acts like torture or ill-treatment undermine deterrence and violate states’ obligations to preserve the rule of law. The Inter-American Court of Human Rights has been even more explicit. In Gelman v. Uruguay, for example, it held that amnesty laws preventing investigation and prosecution of grave human rights violations are incompatible with international law, even when adopted through democratic processes. Cases involving Libya, Uganda, Sierra Leone, and Cambodia, among others, all confirm that international courts routinely reject domestic amnesty laws when they conflict with obligations to prosecute atrocities.

Taken together, these instruments and decisions reflect a settled reality: international law rejects amnesty for atrocity crimes. For the parties to today’s negotiations around Russia’s war of aggression, this means that justice is not merely a bargaining position. It is an irreversible reality. Even if the Ukrainian government, under immense pressure, agreed to grant amnesty to Russian officials before its own courts, such a provision would have no binding effect on the ICC, the Special Tribunal, or the courts of states exercising universal or other forms of extra-territorial jurisdiction. And such a decision would be subject to challenge before the European Court of Human Rights. 

For decades, some policymakers treated peace and justice as mutually exclusive outcomes. Ukraine has demonstrated that this is a false dichotomy. Through its strategic use of law, its mobilization of international institutions, and its insistence that atrocity crimes cannot be ignored, Ukraine has created a system in which the Russian ability to strong-arm Ukrainian officials or the international community into appeasement and amnesty is significantly constrained.

The accountability architecture now in place—including ICC warrants, domestic prosecutions, universal jurisdiction investigations, and a Special Tribunal for the Crime of Aggression—cannot simply be dismantled with the stroke of a pen. The current negotiations between Ukraine, Russia, the United States, and Europe, therefore, are taking place in a world where justice mechanisms are already active and non-negotiable, regardless of what any peace plan provisions may suggest. Justice, once activated, has a momentum of its own.



* Dr. Paul R. Williams is the Co-Founder and Director of the Public International Law & Policy Group and Rebecca Grazier Professor of Law and International Relations at American University

** Dr. Beth Van Schaack is a Senior and Peace Fellow and former Ambassador-at-large for Global Criminal Justice (2022 -2025)

*** Professor David Crane  is the Founding Chief Prosecutor of the UN Special Court for Sierra Leone and Distinguished Scholar in Residence at Syracuse University College of Law

**** Sindija Beta is the Legal Officer and Program Manager at the Public International Law & Policy Group