Department of State advises Americans worldwide to exercise increased caution

The U.S. Department of State issued a worldwide caution advisory on March 22, 2026, urging Americans abroad to exercise increased caution, especially in the Middle East. The advisory warns that U.S. diplomatic facilities have been targeted and that pro-Iran groups may target U.S. interests globally. Americans are advised to monitor security alerts from embassies and be aware of potential airspace closures causing travel disruptions.