Pakistani authorities ordered them to leave after the accidental death of several members of government forces in a NATO raid.
On the night of November 25 to 26, several NATO helicopters shelled a checkpoint in the Mohmand tribal region (northwestern Pakistan), killing from 24 to 28 Pakistani soldiers, including two officers and wounding 14 others . The attack seriously damaged Pakistan-US relations already strained.
Pakistan then blocked supply routes of the international contingent in Afghanistan and has threatened to review all agreements with the United States and the Atlantic Alliance in the political and military.
Islamabad has also demanded that the U.S. leave within 15 days of the Shamsi air base, used to launch drones against the Taliban in the “tribal zone” in Pakistan.