Kurdish fighters from the Popular Protection Units (YPG) are pictured in Aleppo’s Sheikh Maqsoud neighbourhood, June 7, 2013. Kurdish fighters from the YPG joined the Free Syrian Army to fight against forces loyal to Syria’s President Bashar al-Assad. Picture taken June 7, 2013. REUTERS/Muzaffar Salman (SYRIA – Tags: CIVIL UNREST POLITICS CONFLICT)