Foreign relations of Goryeo - 고려의 대외 관계

• Seo Hee is the one who took the lead in winning six provinces of Gangdong.
• Yun Gwan drove out the Yeojin people and secured nine northeastern provinces.
• During the interference of Yuan dynasty, the 2 organisations(2sungs) were downgraded to Chumui department(첨의부).
• During the interference by the Yuan dynasty, six parts were installed Doneung department(동녕부) in Pyongyang.
• King Gongmin abolished the Jeongdong Planet Immunso.

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