Later, in May or June 253, Jiang Wei led the Shu forces to attack Wei territory and besieged the Wei garrison at Didao. At the same time, Zhuge Ke, a general from Wei's other rival state Eastern Wu, also led the Wu forces to attack Wei's eastern border. Jiang Wei hoped that Zhuge Ke would help him divert away the Wei forces' attention to the east and allow him to gain a foothold in the west. However, Guo Huai and Chen Tai led the Wei forces to attack Jiang Wei and managed to lift the siege on Didao, forcing Jiang Wei to withdraw again.