Han Sui
In 211, Xiahou Yuan participated in the Battle of Tong Pass on Cao Cao's side against a coalition of western warlords led by Han Sui and Ma Chao, in which Cao emerged victorious against the coalition. He and Zhu Ling later led a separate force to pacify the Di tribes in Yumi () and Qian () counties. Following that, he rendezvoused with Cao Cao's main force in Anding Commandery (安定郡; covering parts of present-day Ningxia and Gansu), where they forced Yang Qiu, an ally of Han Sui and Ma Chao, to surrender.