Iraqi Christian families fleeing the violence in the village of Qaraqush and Bartala, about 30 kms east of the northern province of Nineveh, are pictured at a community center in the Kurdish city of Arbil in Iraq's autonomous Kurdistan region, on June 27, 2014. Iraq's top Shiite cleric urged the country's fractious political leaders to unite and form a government to help see off advances by Sunni militants who have overrun swathes of territory. AFP PHOTO/KARIM SAHIB