Goryeo was invaded through the Mongols in seven key strategies with the 1230s right until the 1270s, but was never conquered.[117] Exhausted immediately after many years of battling, Goryeo despatched its crown prince for the Yuan cash to swear allegiance into the Mongols; Kublai Khan recognized, and married one of https://judah3fa5g.spintheblog.com/34336600/korea-options