Goryeo Military and Administrative Reforms under King Munjong in the 1070s

Timeline

1. 1071–1077Gaeseong · Korean PeninsulaIn the later years of Munjong's reign, the court reorganized military registers and guard unit structures, strengthened royal army control over the armed forces of local magnate clans, and maintained cautious diplomacy with the Liao dynasty to gain breathing room for border defense.
2. 1078–1080Northwestern Circuit and the Eastern Capital (Hamhung) defense zone · Korean PeninsulaAfter Munjong died in 1083 and Seonjong acceded, Goryeo continued strengthening northwestern border defenses and repairing fortresses, and reorganized the appointment of generals to respond to changes in the Liao dynasty's northeastern frontier situation.