Photo by: Jaber al-Helo

Iraqi and Lebanese Shiite fighters from a group called the Hussein Brigade use a helmet to draw a sniper into view during clashes between the Sunni-dominated Free Syrian Army and government soldiers loyal to Syrian President Bashar Assad, supported by Iraqi and Lebanese fighters, in the town of Hejeira, which Syrian troops captured, in the countryside near Damascus, Syria, on Friday, Nov. 22, 2013. A leading Shiite Muslim cleric widely followed by Iraqi militants has issued the first public religious edict permitting Shiites to fight in Syria’s civil war alongside Mr. Assad’s forces. (AP Photo/Jaber al-Helo)