In the event the United States enters the escalating conflict between Israel and Iran, a likely focus will be on degrading or ...

The heavyweight explosive is known as a GBU-57A/B Massive Ordnance Penetrator and was designed by Boeing for the United States Air Force.

Bunker buster bombs are not battlefield munitions. They serve a very specific purpose, with potential returns far outpacing ...

The 30,000-pound Massive Ordnance Penetrator is considered by analysts to be the best shot at getting through to targets ...

President Donald Trump announced June 21 that American warplanes dropped bombs on three nuclear sites, one of them deep ...

As the war between Israel and Iran escalates, a single U.S. weapon keeps getting mentioned—sometimes quietly, sometimes not so quietly.

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The GBU-57s, or the Massive Ordnance Penetrator (MOP for short), were carried by a fleet of B-2 bombers, marking the first time the munitions were used in combat. U.S. forces struck three sites ...

The United States has used a specific type of weapon for the first time ever on Iran’s underground nuclear enrichment sites.

The Massive Ordnance Penetrator, a precision guided bunker-busting bomb designed to be carried by a B-2 Stealth Bomber, could be the key in taking out Iran’s Fordow enrichment plant.