A diminished but resilient al-Qaida, whose 9/11 attacks drew America into its longest war, is attempting a comeback in Afghanistan’s mountainous east even as U.S. and allied forces wind down their combat mission and concede a small but steady toehold to the terrorist group.

That concerns U.S. commanders, who have intensified strikes against al-Qaida cells in recent months. It also undercuts an Obama administration narrative portraying al-Qaida as battered to the point of being a nonissue in Afghanistan as Western troops start leaving…

“They are trying to increase their numbers and take advantage of the Americans leaving,” the police chief of Paktika province, Gen. Dawlat Khan Zadran, said through a translator in an interview this month in the governor’s compound. He mentioned no numbers, but said al-Qaida has moved more weapons across the border from Pakistan.