Battle of Ruxu (217)

The Battle of Ruxu, also known as the Battle of Ruxukou, was fought between the warlords Sun Quan and Cao Cao in 217 in the late Eastern Han Dynasty. Two years earlier, Sun Quan attempted to take control of Hefei fortress, but failed due to a sudden plague and the staunch resistance put up by Cao Cao's forces under Zhang Liao. Since then, Cao Cao had been making preparations for a counterattack on Sun Quan, and he personally led his navy to Ruxu to fight a decisive battle.

This battle is not to be confused with another earlier battle that also took place at Ruxu in 213, where Cao Cao defeated Sun Quan.

The battle
Before Cao Cao's massive army arrived at the battlefield, Sun Quan's second-in-command, Lü Meng, had already started to strengthen the defense of Ruxu fort, leaving the transportation and retreat route open for Sun.

On the other hand, Cao Cao had his Hefei fortress operated as a front-line base, where he and Zhang Liao station their troops; in addition, Cao Cao ordered Zang Ba and Sun Guan to mobilize their "Qingzhou Corps" to the battlefield.

When Cao Cao pressed on Ruxu fort, Sun sent out Ling Tong, Xu Sheng and the likes to do battle. During the ensuing engagement, Sun Guan was killed in action, and Cao Cao temporarily waived the attack. The development was not as optimistic as Cao had expected, so he set up numerous camps across a river, and gestured a long-term war. Cao ordered Xiahou Dun to lead his "29 armies" from Juchao to the frontline; Xiahou Yuan was responsible for the supply to the "29 armies".

Facing the growing number of Cao Cao's troops, Sun Quan ordered his generals to maintain a line of defense, which Cao was never able to break.

The tide of battle turned heavily in Sun Quan's favor when Gan Ning led 100 men into Cao Cao's main camp under cover of nightfall and laid waste to the camp, throwing Cao's armies into confusion. Gan Ning and his unit left without any casualties, and the demoralized armies of Cao Cao withdrew from the battle.

Sun Quan forces

 * Sun Quan
 * Lü Meng
 * Han Dang
 * Gu Li
 * Jiang Qin
 * Xu Sheng
 * Zhou Tai
 * Gan Ning
 * Sun Jiao
 * Ling Tong
 * Xu Xiong

Cao Cao forces

 * Cao Cao
 * Xiahou Dun
 * Cao Ren
 * Zhang Liao

Modern references
The battle is featured as a playable stage in Koei's video game Dynasty Warriors 5: Xtreme Legends. If the player is playing on Sun Quan's side, he can use Gan Ning's night raid to win the battle. In earlier versions of the game, this battle is merged with the Battle of He Fei.