Goryeo was invaded from the Mongols in seven main strategies through the 1230s right until the 1270s, but was hardly ever conquered.[117] Fatigued after decades of fighting, Goryeo sent its crown prince towards the Yuan money to swear allegiance for the Mongols; Kublai Khan acknowledged, and married among his daughters https://lane9xr1w.fireblogz.com/65212295/about-korea