5 SIMPLE STATEMENTS ABOUT KOREA EXPLAINED

Goryeo was invaded because of the Mongols in 7 important campaigns in the 1230s until finally 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 considered one of his daughters into the Korean crown