前言元朝建立于十三世纪后叶,关于此后的蒙古史,人们做了大量的研究,但是,还有许多问题尚未搞清,关于海山在西北蒙古的军事活动,迄今为止几乎没有人做过考察。从十三世纪后叶到十四世纪初,海都、笃哇等中亚蒙古势力,屡次侵入西北蒙古地区,元朝为了进行防御而在边境上配署了军队。十三世纪末,忽必烈的曾孙海山被派到该地,担任这支边防部队 Preface The Yuan Dynasty was founded in the latter part of the thirteenth century. A great deal of research has been done on the subsequent Mongolian history. However, many problems remain to be solved. To date, almost no one has ever done any inspection on seamounts’ military activities in northwestern Mongolia. . From the latter part of the thirteenth century to the beginning of the fourteenth century, the Mongol forces in Central Asia, such as Haadu and Beodu, repeatedly intruded into the northwestern region of Mongolia. The Yuan Dynasty deployed troops on the border for defensive purposes. At the end of the thirteenth century, Kubi Khan, a great-grandson of Kublai Khan, was sent to the area to serve as the border guard