HELPING THE OTHERS REALIZE THE ADVANTAGES OF KOREA

Goryeo was invaded by the Mongols in seven main strategies from the 1230s till the 1270s, but was never ever conquered.[117] Fatigued immediately after many years of fighting, Goryeo sent its crown prince towards the Yuan money to swear allegiance for the Mongols; Kublai Khan approved, and married considered one of his daughters into the Korean cro