SANLIURFA, TURKEY -  OCTOBER 21:  (TURKEY OUT)  Smoke from an airstrike by the U.S.-led coalition rises in Kobani, Syria, as seen from a hilltop on the Turkish-Syrian border October 21, 2014 near Suruc, Sanliurfa province, Turkey. Turkey announced that they will allow Iraqi Kurdish forces to cross its territory to reinforce the Syrian Kurdish militia in the besieged city of Kobani.  (Photo by Gokhan Sahin/Getty Images)