6个数三中三复式多少组

简介：Judging from this battle of Wukel River and Qiangziling, the Ming Dynasty lacked cavalry and excellent cavalry generals. At the same time, the Great Wall defense line around the capital still could not guarantee 100% security. Without the ability to increase troops everywhere, in the It has become an inevitable choice to set up more mobile troops around Gyeonggi to provide rescue at any time.