DEFUND Act of 2025

S 669, the DEFUND Act of 2025, would end all U.S. participation in the United Nations and its affiliated bodies. It repeals laws enabling U.S. membership, terminates U.S. UN membership, closes the U.S. Mission to the UN, and prohibits all funding for UN contributions or peacekeeping operations. The bill also requires the UN to vacate U.S. government property, revokes diplomatic privileges for UN personnel, and bans future U.S. re-entry into the UN without explicit Senate approval. This directly affects the U.S. government's international obligations and the operational capacity of UN entities in the U.S.