bunker-buster bomb

A bunker buster is a specialized bomb designed to penetrate hardened targets like underground bunkers or thick concrete before detonating. These weapons are a type of hard-target munition, meaning they are built to damage or destroy reinforced structures.123

Bunker busters have a long, narrow body and are equipped with explosives and a delayed-action fuse. This fuse ensures the bomb detonates only after it has successfully penetrated its target. Some advanced versions can even sense when they've reached an open space, like a bunker, before exploding. The U.S. GBU-57 A/B Massive Ordnance Penetrator is an example, weighing 30,000 pounds and capable of penetrating about 200 feet of concrete. These bombs are typically laser-guided for accuracy from high altitudes.431