Bunker-buster’s big brother: US plans 5x heavier warhead to crush fortified bunkers The US Air Force’s 30,000-pound GBU-57/B Massive Ordnance Penetrator (MOP) was used for the first time in combat in 2017. This colossal bomb was designed to penetrate deep into the ground before detonating, specifically targeting fortified underground bunkers. However, as military strategies evolve […]