Tao River
When Chen Tai and his reinforcements reached Chencang (陳倉; east of present-day Baoji, Shaanxi), Wang Jing had already been defeated by Jiang Wei at Gu Pass (故關) and retreated across the Tao River. Chen Tai was worried that Wang Jing might not be able to defend the Wei position at Didao, so he led his troops to reinforce Didao. Wang Jing clashed with Jiang Wei at the west bank of the Tao River and was defeated. Left with about 10,000 men, Wang Jing retreated to Didao while his remaining troops were scattered or killed.