President Recep Tayyip Erdogan on Saturday warned that Turkey would "crush the heads" of Kurdish forces if they did not withdraw from a proposed safe zone along the border under a US-brokered deal. If the pullout does not happen by Tuesday evening, "we will start where we left off and continue to crush the terrorists' heads," Erdogan said in a televised speech in central Anatolian city of Kayseri. Turkey has ...