"This was the right weapon for the right target," General John Nicholson told reporters at a news conference in Kabul.
The 21,600-pound (9,797-kg) GBU-43 bomb, was dropped from an MC-130 aircraft in the Achin district of the eastern province of Nangarhar bordering Pakistan against a network of tunnels that Afghan and US officials said was being used by terrorists linked to Islamic State of Iraq and Syria (ISIS).
Afghan officials said 36 terrorists loyal to ISIS were killed.
US President has termed the mission to be 'Very, Very Successful'.
(Reporting by Josh Smith, Editing by Robert Birsel)
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