元世祖灭亡南宋前后,在东海三次用兵:两次征伐日本,一次招谕瑠求。三次用兵都没有达到元朝统治者的目的,因为遇到台风等原因,两次征日都以失败告终;杨祥、吴志斗招谕瑠求,因为他们的相互争执,结果没有到达瑠求(今琉球本岛)。日本和瑠求相隔数千里,征日与招谕瑠求好像风马牛不相及,其实是有内在联系的。那就是,招谕瑠求是为了建立征伐日本的新基地。 Before and after the death of the Yuan Dynasty ancestors of the Southern Song Dynasty, three troops were deployed in the East China Sea. Two conquests were conducted in Japan, and a request for encyclicals was solicited. All three military exercises failed to achieve the purpose of the ruler of the Yuan Dynasty. Because of the typhoon and other reasons, both of the two levies ended in failure. Yang Xiang and Wu Chih-tung urged them because their mutual disputes did not reach their conclusion (now Ryukyu The island). Japan and Japan are separated by thousands of miles. It is actually an inherent link between the pursuit of Japan and the encyclicals for seeking irrelevance. That is, the encyclicals seek to establish a new base for the conquest of Japan.