Use of Force

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240 Articles
Military personnel look at a computer screen.

A Feasible Precaution Ignored: AI Targeting Algorithms and the Failure to Recognize Protected Emblems

Ensuring algorithms recognize protected emblems is an achievable first step to protect civilians and prevent future AI-enabled tragedies.
An aerial view of a graveyard

When Intelligence Fails: A Legal Targeting Analysis of the Minab School Strike

The law of armed conflict demands that we take the Minab school strike seriously to learn, to reform, and to prevent the next failure.
IMAGES (left to right): People search through buildings, destroyed during Israeli air raids in the southern Gaza Strip on November 7, 2023 in Khan Yunis, Gaza (Photo by Ahmad Hasaballah/Getty Images); A fireball erupts during Israeli bombardment of Gaza City on October 9, 2023 (Photo by Mahmud Hams/AFP via Getty Images); The International Court of Justice (ICJ), the principal judicial organ of the UN, holds public hearings on the request for the indication of provisional measures submitted by South Africa in the case South Africa v. Israel on 11 and 12 January 2024, at the Peace Palace in The Hague, the seat of the Court (Photo by the International Court of Justice).

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.
​Grey boxes filled with fragments of ancient pottery collected after an Israeli strike near the archaeological site of the Roman hippodrome in the southern Lebanese city of Tyre.

Self-Preservation and the Erosion of International Law

It is the violation of fundamental principles of international law that ultimately constitutes an existential threat to all members of the international community.
Wide view of Tehran’s skyline with several tall plumes of grey smoke rising between apartment buildings under a hazy, grey sky.

An Unserious Justification for an Unnecessary War: Assessing the U.S. “Article 51” Letter to U.N. on Iran War

Former US State Department attorney writes that the United States' "Article 51" letter to the UN Security Council fails to identify legal basis for Iran attack.
Stephen Miller, Defense Secretary Pete Hegseth, and Marine General Francis L. Donovan walk side by side outdoors at U.S. Southern Command headquarters in Doral, Florida, during the Americas Counter Cartel Conference, with other officials visible in the background.

Did the United States Just Bomb Ecuador?

The U.S. military continues maritime strikes on alleged drug smugglers and may now be hitting targets on land. Brian Finucane analyzes Trump’s latest War Powers report.
Picture Of United Nations Flags

Operation Epic Fury: Reports of the Death of International Law are Greatly Exaggerated

"I am sure some restrictionists will critique my analysis by claiming it is not grounded in orthodox interpretations of international law."

Aggression, Plain and Simple: A Response to Shany and Cohen on the Attack on Iran

Legal academics debate the state of international law and international institutions in light of the US-Israel-Iran War.
File photo of Iranian frigate IRIS Dena from 2021 commissioning. Photo Credit: MojNews, Wikipedia Commons

Sinking Iran’s Frigate IRIS Dena and the Law of Naval Warfare

Legal explainer concerning the location of the Iranian vessel, the attack itself, and the U.S. submarine's lack of attempted rescue.

The International Community at a Crossroads Over Iran: The reawakening of “illegal but legitimate” or the “law of self-preservation”?

"The tensions we have identified are particularly acute when a State faces an existential threat and, as in here, from an enemy long committed to radically unlawful behavior."

The United Kingdom’s Use of Force Against Iran: Walking a Legal Tightrope?

An assessment of the United Kingdom's ability to maintain a legal line between defensive versus offensive operations against Iran.
U.S. Secretary of State Marco Rubio addresses the press before briefing House and Senate leaders on US military action in Iran, at the US Capitol in Washington, DC, on March 2, 2026. (Photo by Brendan SMIALOWSKI / AFP via Getty Images)

Double Preemption, Imminence, and the U.S. Attack Against Iran

Secretary of State Marco Rubio’s argument that Operation Epic Fury was an act of preemptive self-defense is not credible and does not satisfy the necessary precondition.
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