郭淮
In 240, Jiang Wei led Shu forces to attack the Wei-controlled Longxi Commandery. In response, the Wei general Guo Huai led his forces to attack the enemy and drove them towards territory controlled by the Qiang tribes. Jiang Wei withdrew his troops and returned to Shu. In the meantime, Guo Huai attacked the Qiang tribes led by Midang (迷當) and defeated them. He also received the surrender of over 3,000 Di tribal clans, whom he relocated to the Guanzhong region (present-day central Shaanxi).