It was an unprecedented attack years in the making, with some last-minute misdirection meant to give the operation a powerful element of surprise.

B-2 stealth bombers conducted a series of strikes on targets in Iran, according to a Defense official. There were no U.S. casualties in the attack.

GBU-57 Massive Ordnance Penetrator used in Iran attack, along with Tomahawk missiles, targeting nuclear sites underground.