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Collage of the Israel-Iran conflict

Collection: Iran, Israel and the United States at War (2025-2026 Operations)

Experts analyze the US-Israel Iran military conflicts - covering nuclear diplomacy; strategic, security, and regional implications; and domestic and international law.
In this picture obtained from Iran's ISNA news agency on May 4, 2026, the Iran-flagged tugboat Basim sails near a ship anchored in the Strait of Hormuz off Bandar Abbas in southern Iran. Iran's Revolutionary Guards on May 4 denied that any commercial ships had crossed the Strait of Hormuz, after the US military earlier said two US-flagged merchant vessels had transited through the vital waterway. (Photo by Amirhossein KHORGOOEI / ISNA / AFP via Getty Images) /

What the Iran War Reveals About the War Powers Resolution and How Congress Can Act

It is Congress’s responsibility to assert its constitutional prerogatives with respect to the use of force and to rein in a lawless executive.
Diploma, notebooks and soldier uniform near flag of United States (Getty Images - Liudmila Chernetska)

Hegseth’s Intellectual Purge is an Insult to His Officer Corps

"I am also a registered Republican and a gun owner. I did not arrive in Cambridge confused about my political identity. I did not leave with it erased or chastened."
A man stands in front of a window in daylight, reaching up to check equipment hanging from a ceiling over a gurney-like hospital bed in a damaged room of a maternity hospital. Shattered glass on the floor at the foot of the gurney reflects the light coming through the window.

How the Law of War Can Reckon with Longer-Term Harms of Attacks on Health

When war affects complex and interconnected civilian systems, the full measure of civilian harm lies in what comes after the blast.
Gen. Dan Caine speaks at a podium in front of a photograph of a ship

Five “Blockades” and One Legal Problem: Naval Enforcement in the U.S.–Iran Conflict

Former U.S. Navy Commander, JAGC Mark Nevitt clarifies the 5 "blockades" in the U.S.-Iran conflict and the different legal issues and operational risks at stake.
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 column of black smoke rises above buildings as traffic, mostly motorcycles, pass in the foreground.

Insurgent Offensive in Mali Exposes the Deficiencies of Junta-led Security in the Sahel

Recent militant attacks that killed Mali's defense minister challenge the proposition of the region's juntas that Russia could be a better security partner than the West.
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.
​Wide-angle view of a large circular conference room, under a multicolored checkerboard ceiling and matching multicolored carpet. Ukrainian President Volodymyr Zelenskyy appears on a screen speaking to EU leaders, while leaders sit around the circular conference table. Hungarian Prime Minister Viktor Orbán leans over a table, watching the roundtable from the back of the room.

The Unraveling of the North Atlantic Bargain

As U.S. security commitments to Europe grow conditional, it is clear the old relationship is not recoverable. The question is what Europeans build in its place, and how fast.
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.
U.S. Army soldiers in uniform s​it in formation, with their legs and boots visible in the foreground and American flags hang in the background.

The Constitution’s Forgotten Term Limit on Military Power

Most constitutional experts have never given the Two-Year Clause a second thought. The circumstances that made that neglect tolerable are in the process of dissolving.
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