Ly Thuong Kiet commander-in-chief of the army advanced to fight 18 frontiers along the border, and then attacked Kham, Liem, Dung, Nghi, and Bach, until the last citadel was Ung Chau, which was said to be a fortified stronghold for the Vietnamese army. attack. But in the end, Ly Thuong Kiet caused a terrible massacre for the Song army in Ung Chau...