From Tokyo to The Hague: How a 1946 Tribunal Continues to Shape the Laws of War Commentary
From Tokyo to The Hague: How a 1946 Tribunal Continues to Shape the Laws of War
Edited by: Ingrid Burke Friedman | JURIST Editorial Director
Its critics called it victor's justice. Its defenders called it a turning point. Eighty years on, the Tokyo Trials continue to define the boundaries of accountability in armed conflict.

Eighty years ago, on May 3, 1946, the International Military Tribunal for the Far East opened its proceedings in Tokyo. The world was still reckoning with the devastation of the Second World War, and the tribunal represented one of humanity’s earliest attempts to articulate a legal response to mass atrocity, aggressive war, and systematic violations of human dignity.

The Tokyo Trials were not perfect, but they marked a decisive moment in the evolution of international criminal law. They affirmed that leaders could be held accountable for decisions that unleashed catastrophic violence, and that atrocities committed under the banner of state authority were not immune from judgment.

When the Tokyo proceedings began, the International Military Tribunal at Nuremberg was halfway through its work. The two tribunals focused on accountability. Their beginnings were different, one an international effort created by agreement in London in 1945, the other an order by the Supreme Commander for the Allied Powers to create a court that would prosecute senior Japanese leaders for their destruction of nations and peoples in that region.

A Turning Point in the Law of War and Peace

The tribunal’s most enduring contribution was its insistence that aggressive war itself is a crime. This principle, first articulated at Nuremberg and reinforced in Tokyo, reshaped the postwar international order. It laid the groundwork for the United Nations Charter’s prohibition on the use of force and influenced the development of later institutions, including the International Criminal Court.

The Tokyo Trials also advanced the idea—still contested, still evolving—that individuals, not abstract entities, bear responsibility for the gravest violations of international law. Military commanders, political leaders, and civilian officials were called to answer for decisions that led to widespread suffering across Asia and the Pacific. This was a profound shift from a world in which war was considered a sovereign prerogative beyond legal scrutiny.

A Complex Legacy

The legacy of the Tokyo Trials is layered. Scholars have long debated issues of victor’s justice, procedural fairness, and the uneven treatment of certain categories of crimes. These critiques are part of the historical record and essential to understanding the tribunal’s limitations.

Yet even with these imperfections, the tribunal’s broader legacy endures:

  • It helped establish individual criminal responsibility for wartime atrocities.
  • It reinforced the principle that leaders cannot hide behind the state and are personally responsible for their acts.
  • It contributed to the global movement toward codifying crimes against humanity.
  • It demonstrated that the international community could attempt to respond to mass violence through law rather than vengeance.

The Tokyo Trials did not close the chapter on wartime accountability; they opened one. Their influence can be traced through the ad hoc tribunals of the 1990s, the creation of hybrid courts, and contemporary efforts to address aggression and atrocity crimes in conflicts around the world.

Why the 80th Anniversary Matters

Commemorating the 80th anniversary is not merely an act of historical reflection. It is a reminder of the ongoing struggle to uphold the rule of law in times of conflict. The principles tested in Tokyo—accountability, justice, and the rejection of impunity—remain central to global efforts to confront atrocities today in Ukraine as well as Venezuela and Iran. The unilateral use of force has become foreign policy in this new age of aggression.

The tribunal’s legacy challenges the international community to continue strengthening mechanisms that protect civilians, deter aggression, and ensure that those who commit grave crimes are held to account. It also underscores the importance of fair, transparent, and impartial legal processes—standards that modern institutions must continually strive to meet.

A Legacy Still Unfolding

The Tokyo Trials were a beginning, not an endpoint. Their legacy lives on in the legal frameworks that govern armed conflict, in the institutions that seek justice for victims, and in the enduring belief that even in the aftermath of unimaginable violence, the law can serve as a path toward accountability and peace.

Eighty years later, the world continues to grapple with the same fundamental questions the tribunal confronted: How do we restrain the use of force? How do we protect human dignity in war? How do we ensure that those who violate the most basic norms of humanity are held responsible? And how do we support and sustain organizations chartered to maintain international peace and security?

David M. Crane is a global leader in international criminal justice and the founding Chief Prosecutor of the UN Special Court for Sierra Leone. He has spent decades shaping accountability mechanisms around the world, including serving as a driving architect behind the Special Tribunal for the Crime of Aggression against Ukraine. Crane is a distinguished scholar of international law, a former senior U.S. national security official, and a leading voice on the rule of law, state responsibility, and the legal limits on the use of force.

 

 

 

Opinions expressed in JURIST Commentary are the sole responsibility of the author and do not necessarily reflect the views of JURIST's editors, staff, donors or the University of Pittsburgh.
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