THE SMART TRICK OF KOREA THAT NO ONE IS DISCUSSING

Goryeo was invaded via the Mongols in 7 significant campaigns through the 1230s until eventually the 1270s, but was never conquered.[117] Exhausted following a long time of combating, Goryeo sent its crown prince to your Yuan capital to swear allegiance towards the Mongols; Kublai Khan approved, and married one of his daughters into the Korean crow