Without waiting for the Song army to send out troops first, for the first time in the history of Dai Viet, Ly Thuong Kiet led his army to attack the Song land, creating a fierce battle with the terrible defeat of the Song Dynasty at Ung Chau, slapping a blow. Heaven descends on the honor of the kingdom.

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...

In the spring of 1077, Quach Quy led 100,000 soldiers, 20,000 translators and 10,000 war horses to cross the Nam Quan pass and enter our country. Faced with the fierce spirit and overwhelming force of the Song army, Ly Thuong Kiet chose a defensive strategy, mobilizing the entire population to build a key line on the Nhu Nguyet River. And it was on the Nhu Nguyet Giang line that we fought a decisive battle, completely extinguishing the will to invade the Song Dynasty, forcing Dai Tong to acknowledge Dai Viet as a country.