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U.S. Secretary of Defense Pete Hegseth listens as Chairman of the Joint Chiefs of Staff Gen. Dan Caine testifies before the Senate Armed Services Committee in the Dirksen Senate Office Building on June 18, 2025 in Washington, DC.

At the 60-Day Mark, the Iran War is Triply Illegal

Under the War Powers Resolution, Trump must now terminate the hostilities against Iran he began two months ago. He seems set against doing so.
A detailed view of the uniform of a senior military member as U.S. President Donald Trump speaks at Marine Corps Base Quantico on September 30, 2025 in Quantico, Virginia.

Legal Foundations of Honorable Military Service

As former judge advocates, it was our responsibility while on active duty to advise on the legal demands of and limits on senior officers’ authority and responsibility.
A man watches a tugboat in a port.

The United States-Cuba Oil Embargo and International Law

Experts on naval warfare examine the international law dimensions of the United States campaign against Cuba.
US Department of State building with sign in front

On the State Department Memorandum “Operation Epic Fury and International Law”

Former State Department attorney's critique of the Department's Iran war memorandum on “Operation Epic Fury and International Law.”
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 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. 
(L/R) US Vice President JD Vance, Jared Kushner, U.S. Secretary of State Marco Rubio look on as US President Donald Trump holds up a resolution document that he signed during the inaugural meeting of the "Board of Peace" at the US Institute of Peace in Washington, DC, on February 19, 2026. (Photo by SAUL LOEB / AFP via Getty Images)

Some Questions for Congress About Trump’s Request for Funding for the Board of Peace

Close scrutiny of the administration’s plans for contributions to the Board of Peace is warranted in light of the large dollar amounts involved.
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.
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