The Invasion of Xuchang (許昌侵攻戦, rōmaji: Kyoshō Shinkōsen) is a fictional battle between Sun Ce and Cao Cao's forces. It occurred during the Battle of Guandu when Xuchang, Cao Cao's base of operations, was poorly guarded. With Cao Cao's attention diverted towards Yuan Shao, Sun Ce desires to use the moment of weakness to rescue the emperor, who was held by Cao Cao at Xuchang.