Song Dynasty: Destroy Liao First at the Beginning

Traveling through the Song Dynasty, I found myself in the sixteen states of Yanyun, Liao Kingdom. The Jin soldiers are coming with war and chaos, what should we do? Thanks to the territory system, the boy has since risen. First destroy the Liao Dynasty, and then destroy the Jin Kingdom of Xixia. Does a coward from the south deserve to call himself the Chinese Dynasty? Let me do it!