Turkey's President Recep Tayyip Erdogan delivers a speech to graduates of a military academy in Istanbul, on August 31, 2019. Presidential Press Service via AP
Turkey's President Recep Tayyip Erdogan delivers a speech to graduates of a military academy in Istanbul, on August 31, 2019. Presidential Press Service via AP

Turkey's Recep Tayyip Erdogan threatens unilateral action to create Syria 'safe zone'