The People's Army of Vietnam were another side in the Vietnam War and employed conventional warfare tactics.
NLF and PAVN battle tactics comprised a flexible mix of guerrilla and conventional warfare battle tactics used by the Main Force of the People 's Liberation Armed Forces ( known as the National Liberation Front or Viet Cong in the West ) and the NVA ( People 's Army-Vietnam ) to defeat their American and South Vietnamese ( GVN/ARVN ) opponents during the Vietnam War . 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 .