. Liu Bei, who was at the time a guest in Yuan Shao's army, also suggested to induce uprising in the back of Cao Cao's lands as there were many connections to the Yuan family and their subordinates. The tactic was successful at first, but quickly countered by Man Chong's diplomatic skill. Man Chong had been placed as an official there for this specific reason, as Cao Cao had foreseen the situation prior to the battle.Finally, with the help of a defector from Yuan Shao's army,