Laos and Cambodia fell to communism.
The 20th century Vietnam originated in 1954 as North & South VN; from the 1st Indochina War/aka French Indochina War. The Vietnam of the 21st century originated in 1975; from the 2nd Indochina War/aka American Vietnam War (or US Vietnam War).
French Indochina
If someone said, "I was in Indochina", you would most likely reply, "what part?" Meaning Cambodia, or Laos, or South Vietnam, North Vietnam, etc. Vietnam is to Indochina as Texas is to America (or Texas is to the United States). Example: "What part of the US are you from?" Reply: "Texas"
Indochina was never renamed Vietnam. The two terms refer to different things. Indochina was a French colony that included Vietnam, Laos, and Cambodia. Each became independent under its own name. The only reason that France ruled them as a unity was that simply helped administration. The various ethnic groups, Kinh (Vietnam), Khmer (Cambodia), and Lao (Laos) never saw Indochina as a federation.However, the date when maps stopped identifying Dai Nam or Vietnam as independent and instead as part of Indochina was 1885. North Vietnam and South Vietnam returned with the dissolution of French indochina in 1954.
Indochina Indochina
General Loan was born in Huê, French Indochina on 11th of December 1930. French Indochina is present-day Vietnam. He was South Vietnam's chief of National Police.
It is French Indochina.
To the GI's; "Nam", or "the Nam."
Two: 1st Indochina War (French Indochina War) & 2nd Indochina War (America's Vietnam War).
The French had fought there from 1946 to 1954; 1st Indochina War or French Indochina War.
Laos, Cambodia, North and South Vietnam (now called Vietnam).