ALEPPO, SYRIA - FEBRUARY 18:(EDITORS NOTE: Image contains graphic content.) A Syrian flashes V sign as he carries bodies of Islamic State of Iraq and Levant (ISIL) militants with a tractor to the mass grave outside of the Kobani district of Aleppo, Syria on February 18, 2015. (Photo by Esber Ayaydin/Anadolu Agency/Getty Images)
