An Iranian military personnel (C) educates people about how to use a gun at a booth in Hafte Tir Square, in Tehran on May 17, 2026. President Donald Trump issued a fresh warning to Iran on May 17, saying it had to move quickly towards a peace deal or "there won't be anything left of them." Washington, locked in conflict with Tehran since US and Israeli forces launched major strikes on the Islamic republic beginning February 28, has struggled to break an impasse and make any progress toward ending a war that has shaken the Middle East and sent energy prices climbing. (Photo by AFP via Getty Images) /