They didn't want the military, they didn't want the war, and they weren't welcome, when they came home.
American forces left 1974.
GI's were simply exposed to a different world, than the world they had just left (the US). Different customs, different language, different dress (clothing), different foods, and for many GI's, a different climate.
After the Tet Offensive, how did the United States hope to end the Vietnam War?
Anh do left Vietnam in 1980.
Historians estimate approximately one million Vietnamese refugees left Vietnam.
The last American left Vietnam from the city of Saigon. The fall of Saigon was considered to be the end of the Vietnam War.
Only ones left are Communist ones in Vietnam.
If there are any Vietnam era Rangers still serving in the US Army today (the youngest could be no younger than 48), then, yes. Soldiers who have served in combat in companies who wore unit tabs such as those worn by Rangers are authorized to wear the tab on their left shoulder. In fact, those who do not may be considered out of uniform.
Look Left ---------------->
In The Return, Muthoni has left the karanja.
The French left north Vietnam in 1954
We left, they left. That was the factor.