US Marines & US Sailors got there by ships. US Soldiers originally deployed with their whole units, thus they too went to South Vietnam by ship. After the USA units were in place (in country) then replacements usually arrived by chartered civilian airliners (like TWA, Flying Tiger Airlines, Braniff, etc.). US Marines/Sailors continued to deploy via ocean going vessels.
The south
When the Vietnam War ended in 1975, North and South Vietnam became one communist nation called Vietnam.
Communist NORTH Vietnam wanted to re-unite with it's SOUTHERN half; SOUTH Vietnam. The US backed South Vietnam desired to remain a non-communist Republic of South Vietnam. Because the "Communists" were involved, and this was the cold war era; the US had to stop & contain communism. The North attacked the South, the South resisted...Vietnam War.
Democratic Republic of Vietnam (North Vietnam)
The South Vietnamese referred to Communists LIVING in "South Vietnam" as the Viet Cong. Not to be confused with enemy soldiers entering South Vietnam FROM North Vietnam, the NVA (North Viet Army).
South Vietnam
In the Vietnam War the US opposed the invasion of South Korea by North Korea. The fighters from North Korea, who used guerilla tactics, were known as the Viet Cong.
Viet Cong-
Vote cong
South Vietnam
the north won and the south loss
There IS no North and South Vietnam, only Vietnam. After the US withdrew combat forces from South Vietnam, North Vietnam violated the peace agreement, invaded and conquered South Vietnam. Game over.
North Vietnam WAS located north of the 17th parallel. South VN was south of it.
The North were the communists. The South was the free republic (of South Vietnam).
There no longer is a North Vietnam, North Vietnam and South Vietnam were joined together after the Vietnam War.
North Vietnam launched an invasion of South Vietnam.North Vietnam launched an invasion of South Vietnam.
North Vietnam defeated the South (or the North conquered the South).