The nature of the conflict, including the use of guerrilla and conventional warfare, the strategies of the People's Army of Vietnam and the National Liberation Front, and the strategies of the United States, the Republic of Vietnam, and the allied forces

What this dot point is asking

NESA expects you to analyse how the conflict combined guerrilla and conventional warfare and to compare the strategies of the contending forces. Strong answers integrate the Maoist three-stage doctrine adapted by Truong Chinh and Giap, the operational reality of the NLF and PAVN, US conventional and air-mobile doctrine, the limits of ARVN, and the role of allied forces including Australia.

The answer

The doctrinal framework

Mao Zedong's three stages of revolutionary war (Yu Chi Chan, 1937; On Protracted War, 1938) provided the framework: strategic defensive (guerrilla), strategic stalemate (mobile war), strategic counter-offensive (conventional war). The doctrine assumed the revolutionary side could trade space for time and would win politically by exhausting an enemy with finite political will.

Truong Chinh, the DRV's principal theoretician, adapted Mao in The Resistance Will Win (1947). Vo Nguyen Giap's People's War, People's Army (1961) elaborated. The "dau tranh" (struggle) doctrine integrated three forms: armed struggle (dau tranh vu trang), political struggle (dau tranh chinh tri), and dich van (action among the enemy's people and forces).

The DRV applied this in the First Indochina War: guerrilla 1946 to 1949, mobile war 1949 to 1953, conventional set-piece at Dien Bien Phu 1954. The same template guided the Second Indochina War.

The NLF and guerrilla war

The National Liberation Front (founded 20 December 1960) and its People's Liberation Armed Forces, known in the south as Viet Cong, conducted classical guerrilla war in the rural south. PLAF organisation:

• main force (chu luc) regiments at division level (around 30,000 by 1965),
• regional forces (bo doi dia phuong) at province level (around 60,000),
• local forces (bo doi xa) and village militia (around 100,000).

Tactics: ambushes, sapper attacks on bases, assassination of government officials (around 36,000 killed 1957 to 1972 per US estimates), pressure on village chiefs to defect or be removed, mining roads, sniping at helicopters and convoys. The PLAF rarely held ground; it engaged on its terms then dispersed.

The Cu Chi tunnel network, near Saigon, extended around 250 kilometres at three levels (3, 6, and 10 metres deep) with hospitals, kitchens, command posts, and air vents. Tunnels existed throughout the south; PLAF survived B-52 strikes underground.

Political organisation embedded the military. The Liberation Women's Association, Liberation Farmers' Association, and student fronts mobilised the population. Tax collection, dispute resolution, and basic services in liberated zones built loyalty.

PAVN regular operations

PAVN (the People's Army of Vietnam, also NVA) infiltrated regular regiments south from 1964 onwards down the Ho Chi Minh Trail. PAVN forces were better trained, better equipped, and better officered than the PLAF.

Major PAVN-led engagements:

• Ia Drang Valley (14 to 18 November 1965): 1st Cavalry Division (airmobile) versus PAVN B-3 Front. The first major US-PAVN engagement; around 230 US and around 1,500 PAVN killed.
• Khe Sanh (21 January to 9 July 1968): siege by two PAVN divisions; 274 US, around 5,500 PAVN killed.
• Tet 1968 (January to March 1968): combined with PLAF.
• Easter Offensive (30 March to October 1972): 14 PAVN divisions with T-54 tanks across the DMZ, Central Highlands, and An Loc.
• Ho Chi Minh Campaign (March to April 1975): 17 PAVN divisions, the final conventional offensive.

After Tet 1968 destroyed the southern PLAF, PAVN dominated the military side of the war.

US strategy

The United States imposed a conventional doctrine on what began as a counter-insurgency problem. General Westmoreland (MACV commander June 1964 to June 1968) chose attrition. The "crossover point" theory required PAVN-PLAF losses to exceed replacements; the metric was the body count.

Search and destroy operations (Cedar Falls in the Iron Triangle, January 1967; Junction City in War Zone C, February to May 1967) inserted division-strength forces into PAVN base areas. PAVN typically withdrew across borders; the operations returned ground to the enemy.

Air-mobile doctrine (1st Cavalry Division airmobile, 101st Airborne) used helicopters to project battalions into landing zones, with artillery fire bases and tactical air support. The Bell UH-1 "Huey" provided the mobility; the AH-1 Cobra (from 1967) provided the gunship.

Strategic air power: Rolling Thunder (1965 to 1968), Steel Tiger (Laos, 1965 to 1968), Commando Hunt (Trail interdiction, 1968 to 1972), Linebacker I and II (1972), and Arc Light B-52 strikes throughout. Around 7.5 million tonnes of bombs dropped on Indochina; around three times the WWII total.

Pacification through CORDS (from May 1967, under Robert Komer) tried to add a political-civic dimension. The Phoenix Program (1968 to 1972) targeted the NLF political infrastructure; around 26,000 killed and 28,000 captured.

The strategy failed because attrition does not work against an enemy with high political will, conscription, and rear-area sanctuary. The DRV's break-even point was higher than the US public's tolerance for casualties.

ARVN strategy

The Army of the Republic of Vietnam (ARVN) was trained on the US conventional model, with a heavy logistical tail and reliance on air support. ARVN performance was uneven. Strong units (the 1st Division at Hue, the 18th Division at Xuan Loc, the airborne and marine reserves) fought well. Many units were under-trained, under-paid, and politicised.

ARVN's structural problems included Saigon politics (the constant officer reshuffles), corruption, the ghost-soldier phenomenon, and the absence of a strong rural recruitment base. Vietnamisation expanded ARVN to around 1.1 million by 1972 but did not solve the underlying issues. The 1972 Easter Offensive showed ARVN could fight with US air support; the 1975 collapse showed what happened without it.

Allied strategies

Australia, deployed in Phuoc Tuy Province from June 1966, adopted a different doctrine. Drawing on Malayan Emergency experience, 1ATF emphasised foot patrolling, ambush, careful population engagement, and small-unit aggression. The Battle of Long Tan (18 August 1966) is the iconic engagement. Phuoc Tuy was held relatively secure throughout the deployment.

South Korea (peak around 50,000 troops, Capital and Tiger Divisions) was deployed in II Corps. Korean doctrine was brutal counter-insurgency; the My Lai-equivalent at Phong Nhi and Phong Nhat (12 February 1968) and the Binh Hoa massacre (1966) were Korean operations. Korean forces took around 5,000 dead.

Historiography

Andrew Krepinevich (The Army and Vietnam, 1986) argues the US Army misapplied conventional doctrine to a counter-insurgency.

Lewis Sorley (A Better War, 1999) argues Abrams' post-1968 "one war" approach (combining clear, hold, and build) was working and was wasted by political withdrawal.

Pierre Asselin and Lien-Hang Nguyen for the DRV-NLF strategic decision-making.

Andrew Birtle (US Army Counterinsurgency and Contingency Operations Doctrine, 2007) on the doctrinal evolution.

Common exam traps

Treating the war as purely guerrilla. It was guerrilla in the south through 1968 and increasingly conventional after; Tet was a conventional attempt.

Underrating ARVN. Some ARVN units (1st Division, airborne, marines, 18th Division) fought well; the systemic problems were political and logistical.

Forgetting the Australian doctrinal contrast. Phuoc Tuy is a different pattern from the US III Corps approach.

In one sentence

The Indochina conflict combined NLF guerrilla warfare in the rural south through tunnels, ambushes, and political mobilisation under Mao's three-stage doctrine adapted by Truong Chinh and Giap, with PAVN conventional regulars at Ia Drang, Khe Sanh, the Easter Offensive, and the Ho Chi Minh Campaign, against a US conventional attrition strategy of search and destroy and air power that dominated tactically but could not break Hanoi's political will, ARVN that performed unevenly without US air support, and Australian and South Korean allies who adopted different operational approaches in their respective provinces.