C662 Cao Cao Retreated

Obviously Cao Cao was prepared.

Otherwise, Cao Cao's camp would not be so strict and impenetrable.

Zhang Ren deduced that Cao Cao should be focusing on defense.

The previous Cao Cao was constantly fighting with Liu Xiu and did not plan to defend at all. Now that he had suddenly changed his strategy, Zhang Ren was not used to it.

Zhang Ren ordered, "Order the Catapult and Archer to attack