中国商殷时代,就有了军队,称左师、中师、右师。西周的禁卫军有6个师,宿卫军有8个师,每师2500人。春秋时,各大国都设上、中、下三军。战国时因步兵穿甲胄,故称“带甲”。汉代的中央部队因屯卫于京师长安城内北门,所以称“北军”,统兵官称“中尉”。汉武帝时又建“南军”和警卫部队“羽林骑”。唐代,唐玄宗前实行“兵符制”,兵农结合;唐玄宗 China’s Shang Dynasty, there is the army, said the left division, division, the right division. The West Wing’s Guards Corps has 6 divisions, Su Wei Army has 8 divisions, 2500 units each. Spring and Autumn Period, the major countries are set up, in the next three armed forces. Warring States period because of the infantry armor, so called “with a.” The Central Military Forces in the Han Dynasty called “the Northern Army” because of Tun Tuwei in the north gate of the Chang’an City of the Imperial Capital. The unified army called the “lieutenant”. When the Han Dynasty built the “South Army” and security forces “Harem ride.” Tang Dynasty, Emperor Xuanzong before the implementation of “military symbol system”, soldiers and peasants combined; Emperor Xuanzong