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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3,736 Articles
A collage of images featuring scenes from the Russia - Ukraine War.

Just Security’s Russia–Ukraine War Archive

A catalog of over 100 articles (many with Ukrainian translations) on the Russia Ukraine War -- law, diplomacy, policy options, and more.

On Ambassador Waltz’s Defense of Potential Law of War Violations in the Iran Conflict

Three top legal experts analyze Ambassador Mike Waltz's claims about laws of war and US operations in Iran war.

A Primer on Just War Theory and the Iran War

Leading scholar explains just war theory and the Iran war. An assessment of the Trump administration's response to the Catholic Church.
An interior shot of the Peace Palace, the seat of the International Court of Justice, the principal judicial body of the United Nations.

The International Rule of Law: A Struggle of Memory Against Forgetting

The role lawyers can play in ensuring that the norms underpinning the rules-based international order are not abandoned.
People wait for information outside the Mexican Specialized Prosecutor's Office for Missing Persons in Guadalajara, Jalisco state, Mexico on April 6, 2026.

Widespread and Systematic Disappearances in Mexico: An Urgent Call for UN Action Under the Convention on Enforced Disappearances

The UN General Assembly and Mexico have the unique opportunity to ensure full realization of the rights of victims and reduce enforced disappearances. They should take it.
An overhead view of the Pentagon building in Washington, DC.

In Response to the Letter by International Law Experts

Four experts, who have each served as Senior Law of War Advisor, respond to Letter by 100+ international law experts on Iran war published at Just Security.
Woman sitting down, holding an AK-47 in her lap, in a military base hidden among the mountains in Khalifa, Erbil Province, Iraq.

The International Legal Consequences and Imprudence of U.S. Assistance to Kurdish Rebels in Iran

U.S. policies of funding rebel groups to achieve shared strategic objectives while turning a blind eye to ideology and international law has proven to be myopic time and again
wp-ep134-thumbnail-sudan-enters-its-fourth-year-of-civil-war

The Just Security Podcast: Sudan Enters Its Fourth Year of Civil War

Quscondy Abdulshafi joins host Viola Gienger to discuss how Sudan got to this point, how the international community has responded, and where to go next. 
A large ship is seen in off a coast

Mined and Blockaded: Iran’s Unlawful Mining and the U.S. Port Blockade

If transit passage rights wither away in the Strait of Hormuz, then every chokepoint in the world is potentially exposed.
Plumes of smoke rise following reported explosions in Tehran early on March 3, 2026. The United States and Israel started striking Iran on February 28, killing Iran's supreme leader and top military leaders, and prompting authorities to retaliate with strikes on Israel and across the Gulf. (Photo by ATTA KENARE / AFP via Getty Images)

Over 100 International Law Experts Warn: U.S. Strikes on Iran Violate UN Charter and May Be War Crimes

Over 100 international law experts sign letter on Iran War, UN Charter, and international humanitarian law.
A man takes a photo of an older man's image on a screen.

Codifying Forced Marriage in the Crimes Against Humanity Convention: From Jurisprudence to Treaty Text

States now have an opportunity to codify forced marriage as a specific violation in a proposed treaty on crimes against humanity.
Under a blue and hazy gray sky, a large oil tanker ship emits smoke while sailing the Strait of Hormuz, Persian Gulf, Iran.

Continuing Crisis in Strait of Hormuz: Why Iran’s Hold is Illegal and U.S. Military Force Alone Fails

Former US Navy Commander, JAGC Mark Nevitt provides a legal and operational update on the Strait of Hormuz crisis, including Iran’s military role and imposition of tolls.
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