Ssangseong Prefecture

Ssangseong Prefecture (Chinese: 雙城摠管府; Korean: 쌍성총관부) was an administrative division of the Yuan dynasty established in 1258 in modern-day Kumya County, South Hamgyong Province, North Korea.

It was founded as a base for conquest and domination of northern Goryeo territory together with the Dongnyeong Prefectures, which had jurisdiction over southern Jabi (자비; 慈悲) pass.

In 1258, Yuan dynasty general San Gil (산길; 散吉) and Bo Ji (보지; 普只) invaded northeastern Goryeo along with the eastern Jurchen.

Yu Inu (유인우; 柳仁雨) who was a vice-minister of councilors became an officer for northeast troop and was commanded to seize control of Ssangseong prefecture by King Gongmin of Goryeo.

He was sent to the front together with general of battalion Kong Pubo (공부보; 貢夫甫), Kim Wonbŏng (김원봉; 金元鳳) and Yi Inim (이인임; 李仁任).