THE BASIC PRINCIPLES OF NAJU CITY

In the course of this tumultuous period, Goryeo momentarily conquered Liaoyang in 1356, repulsed two substantial invasions because of the Red Turbans in 1359 and 1360, and defeated the final attempt by the Yuan to dominate Goryeo when General Ch'oe Yŏng defeated a Mongol tumen in 1364. In the course of the 1380s, Goryeo turned its focus towards th