13世纪,蒙古人横扫欧亚大陆,所向披靡。在灭亡欧洲和中西亚40多个国家后,蒙古开始进攻南宋。当时南宋建都临安,以长江为抗击蒙古天堑。重庆合川重镇钓鱼城位于东嘉陵江、渠江、涪江三江汇流之口,与重庆形成犄角之势,是决定南宋存亡的要塞。因此,从1243年到1279年,世界最强大的 In the 13th century, the Mongols swept Europe and Asia. After the demise of more than 40 countries in Europe and Central and West Asia, Mongolia began to attack the Southern Song Dynasty. Lin’an was the capital of the Southern Song Dynasty, with the Yangtze River as a natural moat in Mongolia. Chongqing Hechuan fishing town located in the East Jialing River, Qujiang, Fujiang River confluence of the mouth, forming a horns with Chongqing potential is to determine the survival of the fortress of the Southern Song Dynasty. Therefore, from 1243 to 1279, the world’s most powerful