There were about 80 PCF (Patrol Craft Fast) Swift Boats in South Vietnam. Others were given (or sold) to Thailand, Philippines, and Malta in the Mediterranean Sea. Swift boat #45 (PCF-45) was turned over to the South Viet Navy in about January 1971 & redesignated PCF-3925.. Swifts operated in the ocean until about 1969, then they began operating in South Vietnam's inland waterways as part of the US Navy's "Riverine Forces." All were part of the USN's Brown Water Navy.
After the war, there was a reunification of Vietnam. So the answer is "One country".
Those statistics are itemized on the "Vietnam War casualties" website.
Approximately 2,594,000 US Servicemen served in the Vietnam War.
See website: Statistics About the Vietnam War. Recommended by the History Channel.
Yes. Before the US committed to the Vietnam War, many Americans had not even heard of Vietnam.
The website, "Vietnam War casualties" might be helpful.
Over 300,000 US servicemen were wounded in the Vietnam War.
alot of women died in the Vietnam war died
Two: 1st Indochina War (French Indochina War) & 2nd Indochina War (America's Vietnam War).
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If your question is about the youngest US Servicemen killed in Vietnam; See: Statistics About the Vietnam War (on line); Recommended by the History Channel.
About 1,000,000 men.