Refugees fleeing from Mosul head to the self-ruled northern Kurdish region in Irbil, Iraq, 350 kilometers (217 miles) north of Baghdad, Thursday, June 12, 2014. The Islamic State of Iraq and the Levant, the al-Qaida breakaway group, on Monday and Tuesday took over much of Mosul in Iraq and then swept into the city of Tikrit further south. An estimated half a million residents fled Mosul, the economically important city. (AP Photo)