How the US Dropped Bunker-Busting Bombs on Iran’s Nuclear Sites

In the first American military strike ever on Iran, dubbed Operation Midnight Hammer, the US on June 21 dropped 14 of the largest conventional bombs in its arsenal on the country’s facilities for producing enriched uranium.

The GBU-57 Massive Ordnance Penetrator, or MOP, is a bunker-busting bomb that only the US possesses.