1231 – 1270
El Imperio mongol llevó a cabo una serie de campañas entre 1231 y 1270 contra la dinastía Goryeo de Corea. Hubo siete campañas importantes con un costo tremendo en vidas civiles; la última campaña convirtió a la mayor parte de Goryeo en un estado vasallo de la dinastía Yuan durante aproximadamente 80 años. Sin embargo, existieron movimientos de rebelión durante todo este tiempo y en 1274, parte del territorio de Goryeo se encontraba fuera del control de los mongoles.
1231 – 1232
The siege of Kuju (Korean: 귀주성전투) which occurred in 1231 was a decisive Goryeo victory against the Mongol Empire during the First Mongol Invasion of Korea. After the Mongol army crossed the Yalu river, it quickly captured almost all of Goryeo's border defenses. The Mongol army, however, ran into stiff resistance both at Anju and the city of Kuju, commanded by General Park Seo.
1232
The Battle of Cheoin was a battle between Goryeo militants and forces of the Mongol Empire in Cheoin-bugok, Suju, Yanggwang-do on December 16, 1232. Despite being outnumbered, civilian forces of the fortress managed to hold off the Mongol advance. Following the death of the Mongolian general Saritai, the invading force withdrew, effectively ending the second Mongol invasion of Korea.