In this Tuesday, Sept. 4, 2012, photo, Syrian rebel fighter, Abu Muslim, 30, a former librarian, poses for a picture at a house where he and others wait their turn to go and fight against government forces in Aleppo, in Marea on the outskirts of Aleppo city, Syria. Syria’s rebels have turned to a new tactic of attacking bases, trying to stop the jets and attack helicopters that have wreaked devastation on their fighters and civilians in the battleground city of Aleppo and the nearby countryside. Abu Muslim became a specialist in rocket-propelled grenades during his military service a decade ago. He said in the tight confines of urban warfare, taking out the regime’s older tanks, wasn’t a problem.(AP Photo/Muhammed Muheisen)