/kloc-in the autumn of 0/004 (the first year of Jingde, Song Zhenzong), Liao and Liao Shengzong led troops south and went deep into the Song Dynasty. Some ministers advocated fleeing to the south from the enemy, and Song Zhenzong also wanted to flee to the south. At the urging of Prime Minister Kou Zhun, he went to the bidding state. Song Jun stuck to the town behind Liao soldiers and shot Xiao Dalan, a Liao soldier, at the gates of Yizhou. Liao was afraid of being attacked between Scylla and Charybdis and proposed peace talks. Song Zhenzong is afraid of the enemy and has always advocated peaceful negotiations. First, he sent Wang Jizhong, an old general of Liao, to communicate with each other, and then he sent Cao Liyong to Liao Ying to negotiate. 1February (65438+ 1.005) signed a peace treaty with Liao, stipulating that the Song Dynasty would send silver1.22 million taels and silk to Liao every year. Because Gezhou was also called Geyuan County in Song Dynasty, it was called "Geyuan League" in history.

Song and Liao were brother countries, and the emperor of Liao was young and called brothers. Later generations still gnash their teeth to talk about it.