After Yang Hong came out of Liyang, which was controlled by Shan yufro, the southern Xiongnu, he went straight to the Heishan army of Puyang, and sent letters to Gongsun Zan of Youzhou and Tao Qian of Xuzhou, who were allies of Liyang yufro, Puyang Heishan army, Gongsun Zan of Youzhou and Tao Qian of Xuzhou. In addition, Yuan Shu's five armies were respectively northwest, north, southwest The southeast four directions wave the army together to point to the Yanzhou of Cao Cao.

when Cao Cao, Yuan Shao and others learned about Yang Hong's strategy, their faces suddenly changed. Guo Tu, the chief counselor under Yuan Shao, suggested that Yuan...