self-defense

Whether the magnitude of State responses to terror is ethical and wise goes beyond determinations of legal compliance.

The right of self-defense does not permit a disproportionate loss of civilian life, writes Professor Adil Haque in this essay on what U.N. Member States can say.

The 9th Conference of State Parties to the Arms Trade Treaty could set back the responsible business conduct movement by over a decade.

Recent drone attacks in Russia highlight legal and policy risks that must be weighed carefully.

What international law has to say about other States’ assistance to Russia’s war efforts

Some States are likely engaging in force by virtue of the quantity and quality of the support they are providing to Ukraine. Those activities are lawful as actions taken in the…

The path to peace in Somalia cannot rest on counterterrorism operations alone.

The Biden administration's latest war powers report to Congress and letter to the UN Security Council raise questions about the domestic and international legal basis for hostilities…

Exactly forty-six years ago, on December 14, 1974, the United Nations General Assembly adopted, by consensus, the Definition of Aggression, “the most serious and dangerous form…

The fighting raised a fundamental but surprisingly overlooked question of international law on the use of force.

A core component of post-9/11 counterterrorism policy has been the use of secretive and unaccountable killings of terrorism suspects. The killings must stop. Here's how the president…

In 1945, not all states were UN members and not all territories were states: Dehn explains how use of force and self-defense rights under the Charter reflect these different statuses…