This article is about the weapons used in the Vietnam War, which involved the army of the Republic of South Viet Nam (ARVN) (South Vietnamese Army); the People’s Army of Vietnam (PAVN), commonly known as the North Vietnamese Army (NVA); the National Front for the Liberation of South Vietnam (NLF), better known as the Viet Cong (VC); all services of the U.S. military; the armies of South Korea, Australia, New Zealand, Thailand, and the Philippines; and a variety of irregular troops.