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.
3,764 Articles

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.

Was Targeting Ayatollah Khamenei and Other Iranian Leaders Lawful? What Precedents Does It Set?
After Iran’s supreme leader, Ali Khamenei was killed in a U.S. and Israeli attack, a key question arises: when is striking a member of the enemy leadership lawful under the laws…

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.

Top Questions the Trump Administration Needs to Answer on War with Iran
What Congress, journalists, and the public should ask the Trump administration about its war in Iran.

Aggression by the United States and Israel, Misdirected Self-Defense by Iran, and Collective Self-Defense of Gulf States
Analysis of the legality of U.S.-Israel actions against Iran, Iran’s response, and third-party states’ legal options and obligations under the UN Charter.

“Significantly Diminished”: Commenting Anew on Article 23 of Geneva Convention IV in a Transformed Legal Context
New Commentary on GC IV describes Article 23—the treaty’s key provision governing the duty to allow the passage of essentials to civilians—as "significantly diminished" today.

The Trump Administration’s Theory of Constitutional War Powers: “The President Could Decide”
The legal memo justifying its Venezuela operations provides insight into the administration's use-of-force decisions and the factual evidence undergirding them.

International Reactions to Military Strikes on Iran: A Tipping Point for the UN Charter?
Positions taken at the UN Security Council are a harbinger of whether the legal cornerstone of the international order that is designed to maintain world peace can hold.

Syria’s Al-Hol Camp Is Closed, But Another Remains, as Does International Responsibility
Responsible states can end the chaos and suffering in remaining camps like Roj by repatriating detainees and upholding their obligations to their citizens.

Proving Genocide: Genocidal Intent and Other Aims
In Gambia v. Myanmar, genocidal intent coexists with other aims, revealed through conduct or official statements, showing how destruction of a group can serve broader goals.

Tracking Russia’s Eliminationist Rhetoric Against Ukraine
Updating a tracker of persistent rhetoric by Russian leaders and their associates -- more than 500 examples -- that may constitute evidence of genocidal intent.

What Negotiators Miss in Ukraine Talks: Territorial Concessions Would Abandon Real People – and Fail to Bring Peace
U.S.-led talks float Ukrainian territorial concessions to Russia, but such deals would abandon real communities and entrench an unjust, fragile peace.