US President Donald Trump gave Hamas an ultimatum of “three or four days” on Tuesday to respond to his plan for Gaza, as the militant group reviewed the proposal backed by Israel. The plan calls for a ceasefire, release of hostages by Hamas within 72 hours, disarmament of Hamas and gradual Israeli withdrawal from Gaza, followed by a post-war transitional authority headed by Trump himself. World powers, including Arab and Muslim nations, welcomed the proposal, but Hamas had yet to issue its...