Wanyan Zongbi (Wuzhu)'s Southern Campaign (1136–1137)

Timeline

1. 1136Jin Zhongdu · North ChinaEmperor Taizong of Jin and war hawks such as Wuzhu believed the Song court's sincerity in peace negotiations was insufficient, and decided on another southern campaign, assembling cavalry and infantry to advance toward the Huai River and the Yangtze.
2. 1136–1137Both banks of the Huai River · Huai River BasinWuzhu led the Jin army south, engaging in repeated back-and-forth fighting with Song commanders along the Huai River; some sections were breached by the Jin army, and the Song forces were forced to retreat to the hills south of the Huai and to forts on the north bank of the Yangtze.
3. 1137Huainan region · HuainanForces under Yue Fei, Han Shizhong, and others launched counterattacks in Huainan and Huaxi, recovering some lost territory and stalling the Jin offensive. Both sides suffered heavy casualties, and the front line tended toward stalemate, laying the groundwork for subsequent consolidation of the Huai River defense line.