Because they didn't have enough time to leave Vietnam during the Vietnam War
It forced French troops to leave Vietnam and divided Vietnam into two countries. (A)
Anh do left Vietnam in 1980.
No, Ho Chi Minh Nguyen, may have the last name Nguyen, but had no connection what so ever to the Royal family of Vietnam. He was a commoner before he was famous, not even allowed close to the castle where the Nguyens were.
They didn't leave it; they won it.
1972.
Decisive defeats of their armies, particularly at Dien Bien Phu forced the French to leave Vietnam.
The French left north Vietnam in 1954
By ships and planes.
The last of the U.S. forces left Vietnam in April, 1973.
Because they wanted to save the citizens of vietnam..
30 April 1975