Then-U.S. Vice President Joseph Biden speaks as Turkish Prime Minister Recep Tayyip Erdogan looks on during a luncheon at the State Department on May 16, 2013.
Displaced Syrian children stand by the Turkish border wall at an informal camp in Kafr Lusin village in Syria's northwestern province of Idlib on Feb. 21.
French President Emmanuel Macron (right) jokes with U.S. President Donald Trump (center) next to Turkish President Recep Tayyip Erdogan (left) as they arrive for the NATO summit in Brussels on July 11, 2018.
A pedestrian lights a cigarette as he walks past banners with portraits of Turrkish President Recep Tayyip Erdogan (L) and the leader of Nationalist Movement Party (MHP) Devlet Bahceli in Istanbul on June 19.