The US military's top officer says development of the bunker-busting 13,600kg (30,000lb) GBU-57 bomb began 15 years ago and involved significant use of supercomputers.

The Pentagon on Thursday released an extraordinary number of details about the military's top-secret bombing of Iran's ...

The deep penetrating bombs that the U.S. dropped into two Iranian nuclear facilities were designed specifically for those ...

Reaching Iran's most fortified nuclear enrichment site is a challenge, even for the world's biggest conventional weapons.