Chen Deng proposed that Cao Cao was most afraid of Yuan Shao at this time, and Yuan Shao occupied the counties of Jizhou, Qingzhou, Youzhou, and Hezhou, with excellent weapons and many civilian officials and military generals. The so-called enemy of the enemy is the friend, he mentioned...
Cao Cao Liu Bei Yuan Shao Zheng Xuan Chen Deng
11-21