After initially favoring diplomacy, US President Donald Trump resorted to an extraordinary use of force against Iran on Saturday night, striking three of the regime’s key nuclear sites.

Satellite images analyzed by The New York Times show the extent of damage at the three nuclear facilities hit by the United States. Fordo is Iran’s most critical nuclear enrichment facility, housed deep inside a mountain to shield it from attacks.

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