Pedzisa mutsara unotevera:
Kupinda kwevaMongol muKorea, pakati pemakore ekuma1250 nema1270, vaMongol vakanga vatora matunhu ekuchamhembe kweKorea ndokuvasanganisa muumambo hwavo seSsangseong (쌍성총관부, 雙城總管府) neDongnyeong Prefectures (동녕부, 東寧府). Muna 1356, uto reGoryeo rakatorazve matunhu aya zvichibva pakutyoka kwakaita Yi Ja-chun, mukuru mukuru wechiKorea aishandira vaMongol muSsangseong, nemwanakomana wake, Yi Seong-gye. Mukuwedzera, maGeneral Yi Seong-gye naJi Yongsu vakatungamirira nhimbe kupinda muLiaoyang.