The Viet Cong were one side in the Vietname War and used guerilla warfare tactics.
Vietnam War . The Viet Cong ( also known as the National Liberation Front , or NLF ) , a South Vietnamese communist common front aided by the North , fought a guerrilla war against anti-communist forces in the region , while the People 's Army of Vietnam , also known as the North Vietnamese Army ( NVA ) , engaged in more conventional warfare , at times committing large units to battle .