The Defense Policy of King Gia Long on Vietnam’s Southwestern Border Region (1802-1820)

After reuniting the nation in 1802, King Gia Long set out to build, develop and protect it. was particularly interested defense of southwestern border area due its geo-strategic location significant influence on security country’s south. Consequently, planned executed a policy this critical promote all resources serve Vietnam’s protection. Using specialist research methods, article focuses clarifying Long’s region during period 1802-1820, order firmly safeguard southern territorial integrity.