Break the Military Ambitions, Start from the Miscellaneous Soldiers to Conquer the Mountains and Rivers

The world was in chaos, and one hundred thousand border troops were defeated in one fell swoop. The Hulu went south, and the royal court of Zhongzhou was in danger. A hot-blooded young man defends the isolated city with eight hundred warriors. Will he renew the sun and the moon, or will he fail? There is no time travel, no rebirth, no system, and no plug-ins. This is just an ordinary fictional historical novel, This is a long reply letter written by me as a teenager.