US Forces - Afghanistan struck what officials described as an Islamic State "tunnel complex in Achin district, Nangarhar province, Afghanistan" on 13 April.
Notably, the strike used a "GBU-43 bomb dropped from a US aircraft", US Forces - Afghanistan said in a statement. The 21,000 lb GBU-43/B Massive Ordnance Air Blast (MOAB) combines a KMU-593/B guidance section and BLU-120/B warhead with an 18,633 lb Tritonal explosive fill.
The MOAB is credited with a blast yield of 11 tonnes (TNT) and, at 9.45 m long, is too large to be dropped from a conventional bomber so is deployed from Lockheed Martin MC-130H special mission aircraft.
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