A Syrian military tank is aflame during clashes with Free Syrian Army fighters in Joubar, a suburb of Damascus, Syria, on Wednesday, Sept. 4, 2013, in this citizen journalism image provided by the Syrian Revolution Against Bashar Assad and authenticated based on its contents and other AP reporting. (AP Photo/The Syrian Revolution Against Bashar Assad)

Photo by: HOEP

A Syrian military tank is aflame during clashes with Free Syrian Army fighters in Joubar, a suburb of Damascus, Syria, on Wednesday, Sept. 4, 2013, in this citizen journalism image provided by the Syrian Revolution Against Bashar Assad and authenticated based on its contents and other AP reporting. (AP Photo/The Syrian Revolution Against Bashar Assad)