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Kurdish fighters are pictured during clashes with fighters from the Islamic State group on the outskirts of Syrian city of Hasakeh on June 30, 2015. AFP PHOTO/UYGAR ONDER SIMSEK (Photo credit should read UYGAR ONDER SIMSEK/AFP/Getty Images)

Kurdish fighters are pictured during clashes with fighters from the Islamic State group on the outskirts of Syrian city of Hasakeh on June 30, 2015.  AFP PHOTO/UYGAR ONDER SIMSEK        (Photo credit should read UYGAR ONDER SIMSEK/AFP/Getty Images)