Ban Chao, the hero of the allusions of "joining the army" and "nothing ventured, nothing gained", led more than 30 guards across the western regions for more than 30 years, and was blocked for a long time to unify the western regions in the Han Dynasty.
Dou Xian, a famous Eastern Han Dynasty soldier, led a great army to defeat the Xiongnu army in Jinwei Mountain (now Altai Mountain) on 9 1. After this war, the northern Xiongnu was forced to move westward. Since then, the Xiongnu, as an independent nomadic kingdom, has ceased to exist in China, leaving only the southern Xiongnu attached to the Han Dynasty until it was assimilated.