American pilots launched a major attack on Iranian nuclear facilities. The US military targeted uranium enrichment plants with heavy bombs. Cruise missiles were also fired from a submarine. Operation Midnight Hammer aimed to cripple Iran's nuclear program.

Code-named "Operation Midnight Hammer," the top-secret U.S. precision attack on Iran's nuclear facilities launched overnight was the largest strike using B2 bombers in history and it was the longest flight involving the fleet since 2001, Pentagon officials said Sunday.

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