Goryeo was invaded by the Mongols in seven significant campaigns through the 1230s until eventually the 1270s, but was hardly ever conquered.[117] Fatigued after decades of combating, Goryeo sent its crown prince for the Yuan money to swear allegiance on the Mongols; Kublai Khan approved, and married one among his https://dean3gc5i.nizarblog.com/34091558/how-korea-can-save-you-time-stress-and-money