ARBIL, IRAQ - JUNE 10:  Thousands of people flee from Mosul to Arbil and Duhok due to the clashes between security forces and militants of Islamic State of Iraq and the Levant (ISIL) in Arbil, Iraq on June 10, 2014. The residents gather at a security checkpoint between the provinces of Irbil and Duhok which is controlled by Kurdish Peshmerga troops. (Photo by Emrah Yorulmaz/Anadolu Agency/Getty Images)