Who fought against whom in the Vietnam War?

Vietnam War, (1954–75), a protracted conflict that pitted the communist government of North Vietnam and its allies in South Vietnam, known as the Viet Cong, against the government of South Vietnam and its principal ally, the United States.

In the Vietnam War, communist North Vietnam, backed by the Soviet Union and China fought South Vietnam, supported by the United States.

answer; /// i believe that the correct answer is (divison of labor);