Liu Biao
In 201, Cao Cao led his army to attack Liu Bei in Runan Commandery after his victory over Yuan Shao at the Battle of Guandu. Liu Bei sent Mi Zhu and Sun Qian as ambassadors to Liu Biao. Liu Biao himself came to the outskirts to greet Liu Bei and his followers and treated them with utmost courtesy due an honoured guest. He gave him some troops and sent him to station at Xinye County in northern Jing Province to guard against Cao Cao's advances. Soon many men of talents joined Liu Bei and his rank greatly increased. Liu Biao didn't trust him completely and secretly guarded against Liu Bei.