and command armed forces defending the capital. The headquarters is in Hanoi. 1st Military Region: It is directly under the Ministry of Defense of Vietnam; tasked to protect against foreign invaders; and to organize, build, manage and command forces in northeastern Vietnam. The headquarters is in Thai Nguyen. 2nd Military Region: It is directly under the Ministry of Defense of Vietnam; tasked to organize, build, manage and command armed forces defending northwestern Vietnam. The headquarters is in Viet Tri. 3rd Military Region: It is directly under the Ministry of Defense of Vietnam; tasked to organize, build, manage and command armed forces defending the Red River Delta area. The headquarters is in Hai Phong. 4th Military Region: It is directly under the Ministry of Defense of Vietnam; tasked to organize, build, manage and command armed forces defending north central Vietnam. The headquarters is in Vinh. 5th Military Region: It is directly under the Ministry of Defense of Vietnam; tasked to organize, build, manage and command armed forces defending south central Vietnam, including the western highlands and south central coastal provinces. The headquarters is in Da Nang. 7th Military Region: It is directly under the Ministry of Defense of Vietnam; tasked to organize, build, manage and command armed forces defending southeastern Vietnam. The headquarters is in Ho Chi Minh City. 9th Military Region: It is directly under the Ministry of Defense of Vietnam; tasked to organize, build, manage and command armed forces defending the Mekong Delta. The headquarters is in Cần Thơ The Army of the Republic of Vietnam originally had four corps, for example I Corps (South Vietnam). Later they were redesignated Military Regions 1–4. See also Unified Combatant Command United States historical military districts Fortified district References Military units and formations Military units and formations of China Military units and formations of Germany Military units and formations of Indonesia Types of administrative division