Goryeo was invaded from the Mongols in seven main strategies through the 1230s until eventually 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 towards the Mongols; Kublai Khan acknowledged, and married among his daughters https://stephen8zz5l.blogzag.com/77665151/korea-options