Dubbed by some in the United States military as the “Father of All Bombs,” the GBU-57 is America’s largest non-nuclear bomb. In that role, the GBU-57 has displaced the smaller—but far more famous—Massive Ordnance Air Blast, popularly known as the “Mother of All Bombs” (MOAB).

And the GBU-57 is one of the primary non-nuclear systems that America’s vaunted B-2 Spirit long-range stealth bomber is designed to carry. This, incidentally, is the same B-2 stealth bomber that has been moved en masse to the U.S. Navy’s major staging area on the island of Diego Garcia in the Indian Ocean—roughly 3,000 miles from Iran.