On June 22, the US dropped 14 GBU-57 Massive Ordnance Penetrator (MOP), also known as bunker buster bombs, on two Iranian nuclear sites – Fordow and Natanz. As many as 12 GBU-57 bombs were dropped on Fordow and two on Natanz. Though GBU-57 MOP bombs were developed in the 2010s, this was the first combat … Continue reading GBU-57 MOP: Akin To U.S. Nuclear Bomb, Future Of USAF Bunker Busters Depend On Actual Damage: Official