Iraqi displaced people, who have fled violence in Iraq's northern Nineveh province, walk past the wreckage of military vehicles upon their arrival in al-Hamdaniyah, 76 kms west of the Kurdish autonomous region's capital Arbil, on June 18, 2014. Saudi Arabia warned of the risks of a civil war in Iraq with unpredictable consequences for the region, after Sunni militants seized large areas from Shiite-led government forces. AFP PHOTO/KARIM SAHIB        (Photo credit should read KARIM SAHIB/AFP/Getty Images)