1.The foundation of the frontier defense system , which including the city, barrier, booth and fastness, the political partition of eparchy and county, the emigration to the border and construct of martial bases established a strong base to the form of Chinese nationality.
城障亭塞边防体系的建立、置郡设县的政治区划、大量移民实边和屯田军事基地的建设,为中华民族多元一体格局的逐步形成奠定了坚实的基础。
