|U.S. forces in Afghanistan struck an Islamic State tunnel complex in eastern Afghanistan with "the mother of all bombs," the largest non-nuclear weapon ever used in combat by the U.S. military. The bomb, known officially as a GBU-43B, or massive ordnance air blast weapon, unleashes 11 tons of explosives.|
|MOAB costs around $16 million per unit. So far the U.S. military has spent $314 million on the production of the explosive. The bomb weighs 20,000 pounds and is equipped with GPS tracking systems.|
The Achin district is 100 percent Pashtun tribal. During the Soviet/Afghan war of the 1980s, it was a stronghold of the U.S. backed Mujaheddin. There is a population of around 95,000. The United Nations Office on Drugs and Crime said in 2000 that the area was the greatest opium growing district in eastern Afghanistan.