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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3,764 Articles
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.
Smoke rises following strikes on Tehran on April 7, 2026. New strikes rocked Tehran on April 7 with Iran showing no sign of backing down as a US deadline loomed for it to reopen the Strait of Hormuz or have its civilian infrastructure "decimated,” according to the US president. (Photo by ATTA KENARE / AFP via Getty Images) /

Reprisals and the Paradox of Trust: Why Threats of Retaliation in the Iran War are Unlikely to Work

Reprisals demand trust between adversaries, yet they often spark escalation. Their ban under international law is both moral and practical.
Shirvan Combine Cycle Power Plant. The power station is located in North Khorasan Province, near the city of Shirvan. (Via Getty Images)

When War Crimes Rhetoric Becomes Battlefield Reality: The Slippery Slope to Total War on Iran

Former JAGs warn that threats to strike Iran’s power plants would violate the law of war and endanger U.S. service members’ legal and moral obligations.
US Special Envoy Thomas Barrack and US Ambassador to Lebanon Lisa A. Johnson met with Lebanese Prime Minister Nawaf Salam at Salam's office in Beirut, Lebanon, on July 21, 2025. (Photo by COURTNEY BONNEAU/Middle East Images/AFP via Getty Images)

Washington Is Backing the Wrong Lebanon Strategy

The U.S. should link Lebanese state-building and Hezbollah disarmament through a political process, not war, to secure a durable Israel-Lebanon ceasefire.
The U.S. Army’s Precision Strike Missile Increment 1 lifting off (via U.S. Army)

“Precision Strike Missiles” (PrSMs) in Iran War: The U.S. Obligation to Conduct a Legal Review of New Weapons

Leading expert on U.S. legal reviews of new weapons systems discusses Precision Strike Missiles deployed in Iran war.
Accused Somali pirates board a police van at the Indian naval dockyard/

Where the Law Gets Thin: The Jurisdictional Gap Pirates Exploit

UNCLOS’s piracy provisions codified a model rooted in older piracy patterns that don’t match today’s near-shore threat. Today, piracy is a recurring, adaptive threat.
A huge banner of Iran's Supreme Leader Ayatollah Khamenei who was killed in joint operation named Epic Fury by Israel and the U.S. in his residence is posted on a building facade in Revolution Square on March 4, 2026 in Tehran, Iran. (Photo by Kaveh Kazemi/Getty Images

Khamenei’s Killing and the Perilous Death of the Assassination Ban

Khamenei’s killing ends the U.S. ban on assassination and signals a shift as nations may forsake diplomacy, embracing force to eliminate foreign adversaries.
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.
Protesters hold placards outside the Red Cross offices in Ramallah, in the Israeli-occupied West Bank, on March 31, 2026, during a rally against a bill approved by Israel's parliament that would allow the execution of Palestinians convicted on terror charges for deadly attacks. Israel's parliament approved a bill on March 30, that would allow the execution of Palestinians convicted on terror charges for deadly attacks. (Photo by Zain JAAFAR / AFP via Getty Images)

Statement by Israeli International Law Scholars Concerning Israel’s New “Death Penalty for Terrorists” Law

Leading Israeli international law scholars' statement on how new Israeli death penalty law for certain terrorism crimes "violates basic rules of international law."
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