Syrian rebel commander Abdulaziz says U.S. military training helped his men kill at least 15 Islamic State fighters in a recent battle near Aleppo. Three months earlier, a similar engagement had gone the other way, with two of his men slain.
But his group, the Mujahideen Army, does not know if more of its men will be sent for training, such is the uncertainty surrounding plans for expanding aid to the "moderate" rebels who the United States hopes will take the fight to Islamic State militants in Syria.
The 50 fighters were the first from their group to attend the training in Qatar, part of an ostensibly covert CIA program to offer military support to vetted factions in opposition to President Bashar Assad.