Question

The cease-fire that ended the Vietnam War stated that
Americans had to return Communist prisoners of war.
Communists had to withdraw their forces from South Vietnam.
both parties had to respect South Vietnam’s right to self-determination.
the United States could not add troops to its existing forces in South Vietnam.

Answer 1

Americans had to return Communist prisoners of war.

The 1973 Paris cease-fire required a mutual release of prisoners (Operation Homecoming). It did not require North Vietnamese/VC forces to withdraw from South Vietnam—those troops were allowed to remain.