NLF and PAVN strategy, organization and structure
During the Vietnam War, the National Liberation Front of South Vietnam (NLF), and the People's Army of Vietnam (PAVN), used a distinctive land warfare strategy to defeat their South Vietnamese Army of the Republic of Vietnam (ARVN) and American opponents. These methods involved closely integrated political and military strategy – what was called dau tranh – literally "to struggle".
Source: Wikipedia — NLF and PAVN strategy, organization and structure (CC BY-SA 4.0)