Air war North Vietnam.
Ground war South Vietnam.
The NVA and ARVN fought in South Vietnam. The only fighting taking place in North Vietnam was between jet aircraft (the air war).
With the exception of air strikes, which occurred in four countries (N & S Vietnam, Cambodia, and Lao's), the ground fighting between conventional forces all occurred within South Vietnam, with the exception of President Nixon's invasion (incursion) of Cambodia in 1970 and Lao's in 1971.
The US re-deployed from the place.
In Vietnam, it's an annual new years celebration taking place in January.
Vietnam, with some fighting in Cambodia and Laos.
The war covered the entire country but most of the fighting took place south of the DMZ.
Night time was heavily used.
the shores of France :)
The Vietnam War.
On the western and eastern fronts
South Vietnam
it was difficult to know who the enemy was