fall of Western Jin, control over Liaodong passed onto Former Yan (337-370), which was founded by Mohuba's descendants, and then to Goguryeo. For several centuries Liaodong would be out of Chinese hands, partly due to the lack of Chinese presence there as a result of the policies that Sima Yi and the Wei court adopted for Liaodong after the fall of the Gongsun. In the meantime, the removal of the Yan kingdom cleared a barrier between central China and the peoples of the farther east. As early as 239, a mission from the Wa people of Japan under Queen Himiko reached the Wei court for the first time. Goguryeo soon found itself rid of a nuisance that was only to be replaced by a stronger neighbour, and by 242 the alliance between Goguryeo and Cao Wei ended when Goguryeo provoked Wei's wrath by raiding Chinese settlements in Liaodong and Xuantu commanderies. The Goguryeo–Wei Wars of 244 followed, and after two campaigns Cao Wei devastated Goguryeo to such an extent that Goguryeo would take nearly half a century to recover. Cao Wei's victory allowed the Chinese to re-established friendly contact with the Buyeo. These developments could only have happened after Sima Yi's conquest of Liaodong, which, in some sense, represented the first step in recovering Chinese influence in the farther east at the time. In popular culture The Liaodong campaign is featured as a playable stage in the seventh installment of Koei's Dynasty Warriors video game series in the newly introduced Jin Dynasty story line. Notes References Chen, Shou. Records of the Three Kingdoms (Sanguozhi). Fang, Achilles. The Chronicles of the Three Kingdoms (220-265): chapters 69-78 from the Tzǔ chih t'ung chien of Ssǔ-ma Kuang (1019-1086). Vol. I. edited by Glen W Baxter. Harvard-Yenching Institute 1952. Fang, Xuanling. Book of Jin (Jin Shu). Gardiner, K.H.J. "The Kung-sun Warlords of Liao-tung (189-238)". Papers on Far Eastern History 5 (Canberra, March 1972). 59-107. Gardiner, K.H.J. "The Kung-sun Warlords of Liao-tung (189-238) - Continued". Papers on Far Eastern History 6 (Canberra, September 1972). 141–201. Ikeuchi, Hiroshi. "A Study on Lo-lang and Tai-fang, Ancient Chinese prefectures in Korean Peninsula". Memoirs of the Research Department of the Toyo Bunko 5 (1930). 79–95. Pei, Songzhi. Annotations to Records of the Three Kingdoms (Sanguozhi zhu). Sima, Guang. Zizhi Tongjian. 238 Campaigns of the Three Kingdoms Wars involving Goguryeo Military history of Liaoning