Cao Cao's invasion of Xu Province
…Xu Province, and Tao Qian begged aid from Tian Kai in the nearby Qing Province (青州). Tian Kai sent Tao Qian a force of some thousand men commanded by Liu Bei. Tao Qian, seeking to open a southern front against Cao Cao, appointed Liu Bei as the Inspector of Yu Province, and transferred 4,000 soldiers into his…