曹洪
In the year 200, Cao Hong participated in the Battle of Guandu between Cao Cao and the northern warlord Yuan Shao. When both sides were locked in a stalemate around winter, Cao Cao heeded the advice of Xu You, a defector from Yuan Shao's side, and personally led 5,000 riders to raid Yuan's supply depot at Wuchao (烏巢; southeast of present-day Yanjin County, Henan), which was guarded by Chunyu Qiong. Cao Hong was ordered to remain behind to guard Cao Cao's main camp during the raid. Cao Cao succeeded in destroying Yuan Shao's supplies in the raid and killed Chunyu Qiong in battle.