Goryeo–Liao Border Conflict

Name: Goryeo–Liao Border Conflict
Start: 1080
End: 1089

Type Event Region Korean Peninsula Time 1080–1089

In the 1080s CE, Goryeo built forts and stationed troops along the Yalu River, prompting Liao (Khitans) diplomatic protests and border friction witho…

Timeline

1080–1082Along the Yalu River · GoryeoIn the later reign of King Munjong, Goryeo built forts and added garrison troops along the lower Yalu River and northwestern frontier to guard against Liao raids, drawing Liao attention.
1083–1087Kaesong · GoryeoThe Liao sent envoys to Kaesong to protest the fort construction; Goryeo responded citing defensive needs. Occasional small-scale clashes and captive-taking occurred, with both sides maneuvering through diplomatic correspondence without escalating to full-scale war.

Sources

高丽史
The Cambridge History of China, Volume 6: Alien Regimes and Border States, 907–1368 — Herbert Franke, Denis Twitchett (1994)