Turkish president in landmark visit to Greece to boost ties

Greek Prime Minister Alexis Tsipras (R) and Turkish President Recep Tayyip Erdogan (L) shake hands prior to their meeting in Athens, Greece, on Dec. 7, 2017. Turkish President Recep Tayyip Erdogan arrived here Thursday for a two-day landmark visit amid draconian security measures, as his trip marks the first to the country by a Turkish leader since 1952. (Xinhua/Tariana Bolari)