The GBU-43/B Massive Ordnance Air Blast Bomb, nicknamed MOAB, or 'Mother of All Bombs', is a 21,600 pound, GPS-guided munition that is America's most powerful non-nuclear bomb. It's a weapon that justifies the use of the word 'terrifying' to describe its power and marks a deadly ramping up of America's military initiative abroad. Almost 20 feet long, it truly is the queen of the so-called 'bunker busters'.

The MOAB has been used once in combat, in a 13 April 2017 strike against ISIS forces in Afghanistan. Several news organizations called it the largest conventional bomb ever used in combat, but the 22,000-pound Grand Slam earthquake bombs dropped during World War II may have been even heavier.

Deployed from as high as 20,000 feet, the MOAB races to the ground at supersonic speed before slamming its way toward a hardened target through layered subterranean defenses such as native rock, reinforced concrete, and steel plates.
The 11-tonnes of TNT warhead then bursts about 6 fee