An Iran-backed Iraqi militia has warned the United States of severe consequences if Washington launches strikes on Iran. The group says its fighters are preparing for a prolonged regional war and could intervene if Tehran comes under attack. The militia Kataeb Hezbollah warned that any attack on Iran would be seen as a direct threat, vowing that U.S. forces would face “immense losses” in the region. Commanders said their fighters would respond more aggressively than before, especially if an attack aims to overthrow the Iranian government.