The U.S. military is moving to restock its supply of the GBU-57 Massive Ordnance Penetrator bunker-busting bombs it used against Iran's underground nuclear facilities last June, according to Air Force documents.
Massive Ordnance Penetrator
The Air Force awarded a prototyping contract for a successor to the GBU-57 Massive Ordnance Penetrator, the hulking munition used to destroy Iran’s deeply buried nuclear development sites this June as part of Operation Midnight Hammer.
The 36-hour operation by the U.S. military to fly deep into Iranian airspace and use Air Force B-2s to drop massive bunker buster bombs on a heavily fortified Iranian nuclear complex traces its roots to the work of intelligence analysts over 15 years ago.
A former B-2 Spirit stealth bomber pilot who flew a 44-hour mission in 2001 shares what it may have been like for the Airmen who struck Iranian nuclear facilities last weekend.

