At the end of the war.
the north won and the south loss
North won.
The North won and the South lost in both undeclared wars; US Civil War & Vietnam.
North Vietnam won South Vietnam by conquering it.
See response below.
This is the main one- South Vietnam and its supporters were not sufficient enough to defeat Communist North Vietnam, who had the help of China and other Communist countries. So the South was defeated, the North took over the South and combined South and North into one country, Vietnam. Due to the whole country becoming Communist many South Viets fled the country as refugees.
The North won, the South lost.
Vietnam won the French war. North Vietnam won the American Vietnam War. There was no such country named "Vietnam" during the American Vietnam War 1955-1975. There were two nations: North VN & South VN.
north viet nam, you cannot fight a limited war and win, as is going on in Iraq presently.
Unless you are talking about Vietnam, the North Won! The Union, the north won, while the South confederacy lost
The North Vietnamese won!
Preserving the Republic of South Vietnam from being conquered by Communist North Vietnam.