U.S. revamping rebel force fighting ISIS in Syria

The encounter revealed several glaring deficiencies in the program, according to classified assessments: The rebels were ill-prepared for an enemy attack and were sent back into Syria in too small numbers. They had no local support from the population and had poor intelligence about their foes. They returned to Syria during the Eid holiday, and many were allowed to go on leave to visit relatives, some in refugee camps in Turkey — and these movements likely tipped off adversaries to their mission. Others could not return because border crossings were closed.

The classified options now circulating at senior levels of the Pentagon include enlarging the size of the groups of trained rebels sent back into Syria, shifting the location of the deployments to ensure local support, and improving intelligence provided to the fighters. No decisions have been made on specific proposals, according to four senior Defense Department and Obama administration officials briefed on the matter, who spoke on condition of anonymity to discuss confidential planning.

“As with any difficult endeavor, we expected setbacks and successes, and we must be realistic with those expectations,” Capt. Chris Connolly, a spokesman for the American military task force training the Syrian rebels, said in an email. “We knew this mission was going to be difficult from the very beginning.”