The United Nations Secretary-General welcomed the United States-Iran ceasefire on 7 April, 2026 and urged parties in the Middle East conflict to follow international law and the ceasefire terms

Body of rules, treaties, and customary norms governing relations between sovereign states and other international actors. Provides the legal framework for diplomacy, armed conflict, trade, human rights, and the functioning of international institutions — enforced through courts, arbitration, and state compliance.