Through this tumultuous period of time, Goryeo momentarily conquered Liaoyang in 1356, repulsed two huge invasions from the Purple Turbans in 1359 and 1360, and defeated the final endeavor via the Yuan to dominate Goryeo when Standard Ch'oe Y?ng defeated a Mongol tumen in 1364. During the 1380s, Goryeo turned its notice into the Wokou risk and util