The “Mother of All Bombs” is the nickname for the GBU 43/B Massive Ordnance Air Blast, or MOAB, a powerful conventional weapon developed by the United States (US).
Weighing about 9800 kg, the GPS guided bomb uses conventional explosives rather than a nuclear warhead. Its nickname is an informal expression derived from the initials of its official name.
The weapon is designed to generate an intense blast over a broad area, targeting exposed forces and clearing obstacles. Its principal destructive effect comes from the pressure produced by the explosion.
A key distinction is its role compared with weapons designed to destroy fortified underground facilities. The MOAB is an air blast weapon, while a specialised bunker buster penetrates the ground before exploding.
The US military’s Massive Ordnance Penetrator, or MOP, is a separate, heavier weapon developed for deeply buried targets. Despite their similar names, the MOAB and MOP serve different military purposes.
That distinction matters in discussions about potential attacks on Iranian nuclear facilities. A bomb capable of causing extensive damage above ground cannot automatically be assumed capable of destroying installations buried beneath substantial layers of rock.
For news coverage, describing the MOAB as a powerful American non nuclear air blast bomb explains its function more accurately than relying on its dramatic nickname alone.
