U.S., Turkey pledge closer cooperation for political solution against IS

Turkish President Recep Tayyip Erdogan (R) meets U.S. Vice President Joe Biden in Istanbul, Turkey, on Jan. 23, 2016. The United States and Turkey pledged to cooperate more closely to reach a political solution in Syria while cleaning the region from the Islamic State (IS), said visiting U.S. Vice President Joe Biden on Saturday. (Xinhua/Cihan)