THE BEST SIDE OF KOREA

Goryeo was invaded because of the Mongols in seven main strategies with the 1230s right until the 1270s, but was never conquered.[117] Exhausted following a long time of combating, Goryeo sent its crown prince on the Yuan funds to swear allegiance into the Mongols; Kublai Khan recognized, and married one of his daughters to the Korean crown prince,