TOPSHOTS Relatives mourn over the graves of two fighters of the Kurdish People's Protection Units (YPG) during their funeral in Diyarbakir in southeastern Turkey after the bodies of 13 militants were repatriated from Iraq on August 5, 2015. Europe and the United States urged Turkey to show a "proportionate response" in the face of daily attacks by Kurdish militants amid growing concern over the scale of Ankara's air campaign against the rebels. Ankara is waging a two-pronged cross-border "anti-terror" bombing campaign against Islamic State (IS) militants in Syria and PKK rebels in northern Iraq. But so far the raids have overwhelmingly targeted the Kurdish rebels. AFP PHOTO / ILYAS AKENGIN