. "* Mongol victory; Tr\u1EA7n Th\u00E1i T\u00F4ng and the Viet court abandoned capital Thang Long." . . . . "\u0110\u1EA1i Vi\u1EC7t(ruled by theTr\u1EA7n dynasty)" . "Mongol Empire" . "1258-01-17" . . . "Taylor: 5,000 Mongols and 20,000 Yunnanese" . "13,000\u201325,000" . . "Battle of B\u00ECnh L\u1EC7 Nguy\u00EAn" . . . "battle of B\u00ECnh L\u1EC7 Nguy\u00EAn" . . . "Atwood: 3,000 Mongols and 10,000 Yunnanese" . . . . . . "\u2013" . . . "Battle of B\u00ECnh L\u1EC7 Nguy\u00EAn" . . . . . . . . .