Clashes between ISIL militants and Syrian Kurdish armed groups [Getty Images]

ALLEPPO, SYRIA - SEPTEMBER 30: A member of Kurdish armed group takes a position on the roof of a house during the clashes with Islamic State of Iraq and the Levant around Ayn Al Arab city of Aleppo in northern Syria on September 30, 2014.
(Photo by Emin Menguarslan/Anadolu Agency/Getty Images)

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