Goryeo was invaded because of the Mongols in 7 important strategies from the 1230s till the 1270s, but was in no way conquered.[117] Exhausted soon after a long time of preventing, Goryeo despatched its crown prince into the Yuan capital to swear allegiance to the Mongols; Kublai Khan accepted, and https://johnny3jf6k.dailyblogzz.com/34502999/korea-things-to-know-before-you-buy