Thermobaric Weapon

Thermobaric weapons, also called fuel-air explosives, work in two stages: first, a small bursting charge disperses a cloud of fine fuel or metallic powder over the target area; then, a second charge ignites the cloud, creating a massive fireball and a sustained blast wave that is far more destructive than an equivalent weight of conventional explosive. The blast wave is particularly lethal in enclosed spaces like buildings, tunnels, and bunkers, where it reflects off walls and amplifies.

The physics of thermobaric weapons create several effects that conventional explosives cannot match. The blast wave lasts significantly longer than a conventional detonation, the explosion consumes available oxygen creating a brief vacuum that adds to the destructive effect, and the fireball reaches temperatures exceeding 3,000 degrees Celsius. These combined effects make thermobaric weapons particularly effective against fortified positions, cave complexes, and urban structures.

Russia has been the most prolific user and developer of thermobaric weapons, deploying them extensively in Chechnya, Syria, and Ukraine. The TOS-1 Buratino and its successor TOS-1A Solntsepyok are multiple rocket launchers designed specifically to fire thermobaric warheads at area targets. The United States has also employed thermobaric weapons, including the AGM-114N Metal Augmented Charge Hellfire variant used in Iraq and Afghanistan and the massive GBU-43/B MOAB (Massive Ordnance Air Blast).