Mongol Invasions of Korea - Third Campaign and Treaty

Third Campaign and Treaty

In 1235, the Mongols began a campaign that ravaged parts of Gyeongsang and Jeolla Provinces. Civilian resistance was strong, and the Imperial Court at Ganghwa attempted to strengthen its fortress. Goryeo won several victories but the Goryeo military and Righteous armies could not withstand the waves of invasions. In 1236, Gojong ordered the re-creation of the Tripitaka Koreana, destroyed during the 1232 invasion. This collection of Buddhist scriptures took 15 years to carve on some 81,000 wooden blocks, and is preserved to this day. After the Mongols were unable to take either Ganghwa Island or Goryeo's mainland mountain castles, the Mongols began to burn Goryeo farmland in an attempt to starve the populace. When some fortresses finally surrendered, the Mongols executed everyone who resisted them.

In 1238, Goryeo relented, and sued for peace. The Mongols withdrew, in exchange for Goryeo's agreement to send the Imperial Family as hostages. However, Goryeo sent an unrelated member of the imperial line. Incensed, the Mongols demanded clearing the seas of Korean ships, relocation of the court to the mainland, the hand-over of anti-Mongol bureaucrats, and, again, the Imperial family as hostages. In response, Korea sent a distant princess and ten children of nobles.