Goryeo was invaded by the Mongols in seven main campaigns through the 1230s right up until the 1270s, but was under no circumstances conquered.[117] Fatigued just after decades of fighting, Goryeo sent its crown prince to the Yuan capital to swear allegiance towards the Mongols; Kublai Khan acknowledged, and married https://lukas7ut3f.acidblog.net/65043172/korea-secrets