ALEPPO, Syria — A controversial prisoner release has Syrian opposition forces wondering who's really on their side.
The opposition's National Army and Free Syrian Army (FSA) have fought alongside Turkish forces against the Kurdish People's Protection Units (YPG), which Turkey considers a terrorist group. The Syrian regime has backed up the YPG. Meanwhile, Russia and Turkey forged an agreement regarding the conflict, but Russia is also a staunch ally of Syrian President Bashar al-Assad.