Korean fortress

Korean fortresses are fortifications constructed by Koreans since the Three Kingdoms of Korea period. Koreans developed a unique and distinct fortress tradition. Korea, beginning with Goguryeo, has been called "a country of fortresses"; almost 2,400 mountain fortress sites have been found in Korea.

There are numerous types of Korean fortresses, including sanseong (mountain fortress), eupseong (city fortress), pyeongjiseong, gwanseong, jangseong, chaekseong, and more.