HELPING THE OTHERS REALIZE THE ADVANTAGES OF KOREA

Goryeo was invaded with the Mongols in seven big campaigns in the 1230s until eventually the 1270s, but was never conquered.[117] Exhausted following decades of combating, Goryeo sent its crown prince on the Yuan money to swear allegiance for the Mongols; Kublai Khan acknowledged, and married certainly one of his daughters towards the Korean crown