On Feb. 28, 2026, the United States and Israel launched a war of aggression against Iran, in clear violation of Article 2(4) of the UN Charter and customary international law, according to a consensus of international law experts with whom we agree. Iran responded with a series of unlawful attacks against States in the region. 

In a piece published last week by Just Security, Professors Yuval Shany and Amichai Cohen suggested the U.S. and Israeli strikes against Iran, and the notably mild or even supportive response by certain western States, reflects a general dissatisfaction with international law on the prohibition on the use of force.