Armed Conflict
Use of Force
806 Articles

Manifestly Illegal: Israeli International Law Scholars on the Stated Plan to “Concentrate” the Palestinian Population in South Gaza
Israeli international law scholars send urgent letter to Israel’s Minister of Defense, the IDF Chief of Staff, the Attorney General.

Just Security’s Israel-Hamas War Archive
Just Security's collection of more than 110 articles covering the Israel-Hamas War and its diplomatic, legal, and humanitarian consequences.

Our Duty to Explain Israel’s Operation to “Concentrate and Move Population” in Gaza is a Manifest War Crime
We wrote this essay to fulfill our human, conscientious, and civic duty, as Israelis – and as Zionists – who have expertise in areas related to the IDF’s order.

Assessing the U.S. Article 51 Letter for the Attack on Iran: Legal Lipstick on the Use of Force Pig
Former State Department attorney analyzes U.S. letter to UN Security Council that presented legal arguments for U.S. strike on Iran's nuclear facilities.

The U.S. Attack on Iran Was Unconstitutional
Trump’s strike on Iran violated constitutional limits on the president's unilateral power to take the nation to war—an authority the Framers reserved for Congress.

The Just Security Podcast: A Ukrainian MP Takes Stock of the NATO Summit and the Prospects for Peace
Ukrainian MP Oleksiy Goncharenko discusses the NATO Summit and the war with Washington Senior Editor Viola Gienger and guest host Lauren Van Metre.

President Trump’s Decision to Bomb Iran: From Bad to Worse
Whether newly announced ceasefire actually leads to end hostilities will not change the new reality: a comprehensive agreement is less likely now than before the bombing

The Day After U.S. Strikes on Iran’s Nuclear Program: A Policy and Legal Assessment
An expert policy and legal assessment of the U.S. strikes on Iran's nuclear facilities and what comes next.

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.

Can Trump Seize a Win in Ukraine?
It’s in Trump’s hands to deliver the logic of force: to rally the West, to back Ukraine, squeeze Russia, and set the stage for a win for Ukraine, the free world, and the U.S.

What are “Wartime Authorities” and When Can the President Use Them? An Expert Q&A
It is essential to understand the line between war and peace, scrutinize the application of wartime powers, and interrogate the president’s assertions when he triggers them.

The Illegality of Israel’s Military Offensive in Gaza
Analysis of jus ad bellum with Israel’s stated objectives for its current military operations in Gaza.