The 23 most dangerous countries for US travelers in 2026, according to the State Department

Iran is one of the countries on the US State Department's "Do Not Travel" list. ATTA KENARE / AFP via Getty Images The US Department of State issued a worldwide travel warning for American citizens. Twenty-three countries are on the US State Department's "Do Not Travel" list due to risks. The State Department warns of threats like terrorism and kidnapping in some of these countries. The US State Department gave American citizens traveling abroad a serious warning this week. As the Iran War continues in the Middle East , the department issued a warning to Americans worldwide, recommending increased caution amid a "complex security environment" that might result in "unforeseen escalation." "Americans currently in the Middle East should exercise caution and heightened vigilance and should be prepared for flight cancellations , periodic airspace closures, and potential travel disruptions ," the department wrote.