Goryeo · Historical figure
Seo Hui
942–998
A diplomat whose Khitan negotiations enabled the Gangdong Six Garrisons.
Key events
His negotiations with the Khitan commander Xiao Sunning in 993 secured a withdrawal. Subsequent fortification east of the Yalu laid the basis for the six northeastern garrisons.
Legacy
He joined historical claims with practical interests in negotiations with Khitan. His diplomacy demonstrates how argument and judgment can alter territorial outcomes.