They didn't leave it; they won it.
North Vietnam won the war.
See the website on "Vietnam". But be advised, there was NO "North Vietnam" after the war ended...Just VIETNAM.
There no longer is a North Vietnam, North Vietnam and South Vietnam were joined together after the Vietnam War.
an exchange of prisoners of war in North Vietnam
The North won.
The French left north Vietnam in 1954
Air war-North Vietnam Ground war-South Vietnam
For North Vietnam it was.
Because they didn't have enough time to leave Vietnam during the Vietnam War
North Vietnam=Air War South Vietnam=Ground & Riverine War
North Vietnam won the war.
North Vietnam was a communist nation during the Viet War. They defeated (conquered) the Republic of South Vietnam during the Vietnam War (April 1975).