Battle of Caishi

Timeline

1. 1161Caishi Rock · Anhui ProvinceJin's Hailing Emperor Wanyan Liang led his main force south; the Song main army had gone north to reinforce Huainan, leaving Caishi thinly defended. Yu Yunwen, then a Secretariat Drafter, was sent to reward the troops, saw the crisis, and on his own initiative rallied scattered soldiers to organize a defense.
2. 1161Waters off Caishi Rock · Anhui ProvinceSong warships and fire ships struck the Jin river-crossing fleet, firing thunderclap bombs and other firearms; many Jin vessels burned and soldiers drowned, thwarting the crossing attempt.
3. 1161Yangzhou · Jiangsu ProvinceAfter the defeat at Caishi, Jin morale collapsed; Wanyan Liang was killed in his camp at Yangzhou by a mutiny led by his generals Zhang Jun, Yang Cunxiao and others. The Jin southern invasion fully collapsed and the Southern Song was saved from danger.