Viet Nam is not a person it's a country.
vietnamisation
Hanoi (or Ha Noi) is the capital of Vietnam.
Asia.To be exact south-east asia
Ho Chi Minh .
Dwight D. Eisenhower did not directly engage in the Vietnam War, as he served as President of the United States from 1953 to 1961, before the conflict escalated significantly. However, his administration laid the groundwork for U.S. involvement by supporting the French colonial forces in Indochina and promoting the "Domino Theory," which suggested that if one country in Southeast Asia fell to communism, others would follow. Eisenhower's policies included financial and military aid to the South Vietnamese government, setting the stage for increased U.S. involvement in the region during subsequent administrations.
South Vietnam was the turf of the Viet Cong (VC). NVA moved through Laos & Cambodia via the Ho Chi Minh Trail. Although, the VC could use sanctuaries in Cambodia (COSVN-Central Office South Vietnam; which we went after, under Nixon's Cambodian Invasion (Incursion) on 01 May 1970-resulting in the Kent State University Shooting on 04 May 1970).