they've took salahuddin. and then suddenly there was shooting coming from down that street, coming from salahuddin area. the same thing happened on the other end of the city. >> narrator: abu mohammed met commanders from other parts of aleppo to strategize. for ghaith, the meeting was a glimpse into the divisions in the rebel movement. the other two commanders are islamists, while abu mohammed is secular. >> they are cooperating because they are fighting a common enemy. they can't afford to question where they are at this moment. each of them complains about the other, and at one point there will be a clash between these two forces. >> takbir! >> allahu akbar! >> takbir! >> allahu akbar! (chanting) >> narrator: one of the islamists, sheikh abdul rahman, showed us the streets in salahuddin that his fighters had managed to reoccupy. (tires squealing) he said a few days earlier, the syrian army had destroyed this apartment complex. his men hadn't been able to rescue the civilians trapped alive in the rubble. one