International Law

Just Security offers expert analysis of international law and its role in addressing global challenges. Our coverage includes litigation in international and regional tribunals, the process of international law-making, analysis of compliance and accountability for international law violations–including international criminal justice, and challenges to the international legal order.

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Bargaining About War in the Shadow of International Law

International law offers important tools to prod adversaries to avoid military options for resolving disputes.
Image: BRUSSELS, BELGIUM - MARCH 24: British Prime Minister Boris Johnson (L), German Chancellor Olaf Scholz (C), U.S. President Joe Biden (C-R) and Canada's Prime Minister Justin Trudeau (R) looks on during a video call with Volodymyr Zelensky, President of Ukraine, during a NATO summit on Russia's invasion of Ukraine, at the alliance's headquarters in Brussels, on March 24, 2022 in Brussels, Belgium. Heads of State and Government take part in the North Atlantic Council (NAC) Summit, where they will decide on the next steps to strengthen NATO's deterrence and defence. (Photo Denzel/Bundesregierung via Getty Images)

Does the ‘Responsibility to Protect’ Require States to go to War with Russia?

In short: No. Here's how to understand what the R2P commitment does require in Ukraine and beyond.
Men dressed in suits sit around a large table with stacks of documents in front of each of them. Iona Nikitchenko and Aron Trainin (center, center left) during deliberations at the London Conference, 1945.

Как Советский Союз помог установить преступление агрессивной войны

"Что не всегда признается, так это жизненно важная роль, которую Россия, или, точнее, Советский Союз,…
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Still at War: The United States in Yemen

Relying on military force alone in Yemen, a longstanding front in the "forever war," will not promote US interests or regional stability.
Standing in front of their respective national flags and each behind a tall white podium, the leaders of Ukraine, Lithuania, and Poland speak to the international press. The event took place in Kyiv on February 23, 2022. Ukrainian President Volodymyr Zelensky at center, and his counterparts from Lithuania Gitanas Nauseda on the right, and Poland Andrzej Duda on the left. 

How States Can Prosecute Russia’s Aggression With or Without “Universal Jurisdiction”

Prosecutions could quite easily be based on Ukraine’s delegation of its own jurisdiction through bilateral or multilateral agreement.

Як Міністерство юстиції може переслідувати росіян за воєнні злочини і як Конгрес може розширити свої повноваження

"Ця реформа давно назріла і включає зміни, які раніше заохочували Міністерство оборони та Державний…

How DOJ Could Prosecute Russians for War Crimes, and How Congress Can Expand Its Remit

"This reform is long overdue and includes amendments previously encouraged by the Department of Defense and Department of State."

Litigating Aggression Backwards

"Litigating aggression backwards may 'work' in the sense of obtaining favorable judgments, but it can also create subtle distortions over what is at stake that are only likely…

How Not to Fail on International Criminal Justice for Ukraine

"The revival of support for legal accountability for the crimes of aggression, war crimes, and crimes against humanity is welcome. But will it last — and will it succeed?"

Russia’s Use of Cluster Munitions and Other Explosive Weapons Shows Need for Stronger Civilian Protections

"Russian forces have relied heavily on two types of weapons that are notorious for the unacceptable and often unlawful harm they inflict on civilians."

Шлях: Головний прокурор, Міжнародний кримінальний суд та Україна

"Найкращим варіантом для Сполучених Штатів, України та міжнародної спільноти буде повна підтримка…

The Way: The Chief Prosecutor, the Int’l Criminal Court, and Ukraine

"The Biden administration will best serve the United States, Ukraine, and the international community by supporting the Prosecutor fully," writes a former DOJ attorney and veteran…
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