The February 28 U.S.–Israel assault on Iran—Operation Epic Fury (U.S.) and Operation Roaring Lion (Israel)—has expanded into a broader regional war after precision strikes killed Supreme Leader Ali Khamenei and dozens of senior officials using shared U.S.-Israeli intelligence. Nearly 2,000 military and nuclear targets have been hit, while Iran and Hezbollah have retaliated with missile and drone attacks on Israel, U.S. bases, and Gulf energy infrastructure, causing mounting casualties. President Donald Trump said the campaign could last four to five weeks or longer and has not ruled out ground troops, despite reports that U.S. intelligence found no imminent Iranian attack before the strikes. The conflict has disrupted Strait of Hormuz shipping, spiked global energy prices, strained U.S. air defenses, and drawn Gulf states deeper into fighting, while Iran’s leadership vows a prolonged war and diplomacy remains stalled with no clear off-ramp.