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Can America's Mother of All Bombs Destroy Iran's Nuclear Sites?
- •The GBU-43/B Massive Ordnance Air Blast Bomb, known as the MOAB or 'mother of all bombs,' is a 21,600-pound GPS-guided conventional thermobaric weapon.
- •Military experts state that the MOAB is ineffective against deeply buried nuclear facilities like Iran's Fordow plant because it is designed for air bursts rather than penetrating rock and concrete.
- •To target underground facilities, the US military relies on the GBU-57 Massive Ordnance Penetrator, a 30,000-pound bunker buster delivered by stealth bombers.
- •Despite its limitations against deep bunkers, the MOAB could potentially be used against Iranian above-ground oil infrastructure, radar systems, coastal defenses, and shallow tunnel entrances.
Key Questions Answered
The GBU-43/B Massive Ordnance Air Blast (MOAB) bomb, known colloquially as the "mother of all bombs," is a 21,600-pound GPS-guided, air-delivered conventional thermobaric munition developed by the US in the early 2000s. Rather than detonating underground, it uses a proximity fuze to ignite approximately 6 feet above the surface, releasing a massive blast wave with a 1-mile radius.
Military experts confirm that the MOAB is almost entirely ineffective against deeply buried underground sites like Fordow or Natanz because its thin aluminum casing is designed for open-air surface blasts and would break apart upon impact with solid rock. Iran's Fordow facility, for instance, is carved beneath 200 to 300 feet of solid granite and reinforced concrete, leaving centrifuge halls untouched by surface explosions.
The true bunker buster in the US arsenal for deep targets is the GBU-57 A/B Massive Ordnance Penetrator (MOP), a 30,000-pound precision-guided weapon featuring a thick, hardened steel casing. It uses kinetic momentum to penetrate up to 200 feet of earth or 60 feet of reinforced concrete, and is dropped exclusively from stealth bombers like the B-2 Spirit.
