Turkish troops enter Syria's Afrin on second day of offensive

Turkish armored vehicles run near the Syrian-Turkish border at Reyhanli district in Hatay, Turkey, on Jan. 21, 2018. Turkish ground troops entered Syria's Afrin Sunday on the second day of an offensive against U.S-backed Kurdish militia which should be wrapped up soon, said Turkish President Recep Tayyip Erdogan. (Xinhua)