The 9.8-tonne GBU-43 bomb was dropped from an MC-130 aircraft in the Achin district of Nangarhar province, close to the border with Pakistan, Pentagon spokesperson Adam Stump said.
It was the first time the United States has used this size of conventional bomb in a conflict.
U.S. President Donald Trump described the bombing as a "very successful mission." It wasn't immediately clear how much damage the device did.The bomb was first tested in March 2003, just days before the start of the Iraq war. When it was developed in the early 2000s, the Pentagon did a formal review of legal justification for its combat use. …show more content…
John W. Nicholson, commander of U.S. forces in Afghanistan, said in a news release the strike was designed to minimize the risk to Afghan and U.S. forces conducting clearing operations in the Achin area "while maximizing the destruction" of ISIS fighters and facilities.He said ISIS has been using improvised explosive devices, bunkers and tunnels to strengthen its defences.
"This is the right munition to reduce these obstacles and maintain the momentum of our offensive against ISIS-K," he added, using the U.S. military's acronym for the ISIS affiliate.
U.S. officials say intelligence suggests ISIS is based overwhelmingly in Nangarhar and neighbouring Kunar province.Estimates of its strength in Afghanistan vary. U.S. officials have said they believe the movement has only 700 fighters, but Afghan officials estimate it has about 1,500.
ISIS's offshoot in Afghanistan is suspected of carrying out several attacks on minority Shia Muslim targets.
The Afghan Taliban, who are trying to overthrow the U.S.-backed government in Kabul, are fiercely opposed to ISIS and the two groups have clashed as they seek to expand territory and