The MOP was developed in the early 2000s as part of a DARPA-led effort created in response to the emergence of Iranian and North Korean fortified nuclear facilities. President Donald Trump ...

A 15-ton “bunker buster” bomb was likely needed to destroy the last untouched nuclear facility in Iran, and only the US had one. Such a powerful weapon — the largest non-nuclear bomb in the US arsenal ...

The United States deployed its most formidable conventional weapon —the GBU-57A/B 'Bunker Buster' bomb or Massive Ordnance Penetrator — in 22 June 2025 strikes against Iranian nuclear facilities. This ...

The US strike on Iranian nuclear sites — dubbed “Operation Midnight Hammer” — was the biggest ever attack by B-2 Spirit stealth bombers, and the longest flight the aircraft have made since 2001. It ...

The GBU-57 MOP is the world’s most powerful non-nuclear aerial munition, packing 5,342 pounds of lethal high-explosive inside its 30,000-pound bulk. The bomb is so heavy that only the B-2 and the B-52 ...

Details about the future NGP are limited, but current speculation suggests it could be roughly similar in size to the 30,000-pound “Massive Ordnance Penetrator.” The United States Air Force used its ...