President Trump warned the Iranian regime Sunday afternoon, vowing that war between Washington and Tehran would result in “the official end of Iran” before warning, “Never threaten the United States again!”

President’s tweet was hours after a rocket landed less than a mile from the U.S. Embassy in Baghdad’s heavily fortified Green Zone, the first such attack since September. Iraqi intel showed the rocket appeared to have been fired from east Baghdad, which is home to several Iran-backed Shiite militias.