Iran and Iranian-backed militias fired missiles at Israel and Arab states and Israel and the United States pounded targets in Iran as the war expanded with statements of defiance and increasing casualties. The Lebanese militant group Hezbollah claimed strikes on Israel, which fired back, killing at least 31 people, and Gulf states warned that they could retaliate against Iran after strikes that hit key sites and killed at least five civilians. One Iranian strike apparently hit the U.S. Embassy compound in Kuwait on Monday, with smoke and fire seen rising from inside.
