How to consolidate and strengthen the rule of the frontier in Qin and Han Dynasties

Measures to control the frontier in Qin and Han dynasties;

Economic development. Economic development and social stability are the premise and foundation of frontier governance, so an important content of frontier governance is economic development. There were two main forms of economic development in China's border areas during the feudal period: one was the reclamation of state behavior; Second, the central government takes effective measures to promote non-governmental exchanges between the border areas and the mainland. Reclaiming land in frontier areas is also called reclaiming land and guarding the frontier. Historically, all dynasties have taken stationing wasteland and guarding the frontier as an important measure to develop and consolidate frontier defense.

Pro-relationship policy, pro-relationship with Xiongnu; The affinity of Han Dynasty was mainly with Xiongnu in the northern frontier and Wusun in the northwest frontier. From Emperor Gaozu to the early period of Emperor Wudi, there were five imperial daughters and pro-Huns in the Han Dynasty. After the middle period of Emperor Wu of the Han Dynasty, in order to unite Wusun to fight back against Xiongnu, the Han Dynasty shifted its focus from Xiongnu to Wusun, and three princesses, two ladies-in-waiting and Wusun, Qiuci and Shanshan appeared successively.

Fight the Huns and destroy their ambitions. Qin Shihuang attacked the Huns in the north and conquered the Vietnamese in the south. During the period of Emperor Wu of the Han Dynasty, the northern part defeated the Xiongnu, the western region was set up in the west, and counties were set up in the southwest, which contributed to the jurisdiction of the frontier.