The role of China and the Soviet Union in the conflict, including their support for the DRV and the NLF, the impact of the Sino-Soviet split, and the strategic context of the Cold War in Asia

What this dot point is asking

NESA expects you to analyse the role of the two communist great powers in the conflict. Strong answers integrate the Chinese transformation of the Viet Minh after 1949, the Soviet weaponisation of the DRV from 1965, the Sino-Soviet split, Hanoi's balancing act, Nixon's triangular diplomacy, and the post-1975 alignment of Vietnam with Moscow that produced the Sino-Vietnamese war of 1979.

The answer

The People's Republic of China and the Viet Minh

Mao Zedong's victory in the Chinese Civil War on 1 October 1949 brought a friendly power to the northern Vietnamese border. The PRC was the first state to recognise the DRV (18 January 1950), ahead of the USSR (30 January 1950). The Chinese Military Advisory Group, under General Wei Guoqing, arrived in Vietnam in April 1950.

Chinese aid was strategically decisive in the First Indochina War. Sanctuary across the Sino-Vietnamese border permitted Viet Minh divisions to rest and refit. The training base at Nanning produced regular Viet Minh divisions; the 308th, 304th, 312th, 320th, and 316th Divisions were trained on the PRC model. Soviet artillery, machine guns and equipment transferred through China armed the Viet Minh.

Wei Guoqing was an adviser at Dien Bien Phu; Chinese-supplied 105mm howitzers and 75mm recoilless rifles closed the airfield. PRC truck companies hauled supplies on the Trail to the besieging force.

The Soviet Union and the early DRV

The Soviet relationship was more distant in the 1950s. Stalin valued the European theatre over Asia and was cautious in Indochina. The USSR co-chaired Geneva (Molotov with Eden) and pressed Hanoi to accept partition and elections. Khrushchev's "peaceful coexistence" doctrine after 1956 made the Soviet leadership uncomfortable with armed liberation struggles. At the 1961 Geneva Conference on Laos, the USSR coordinated with the United States to neutralise Laos.

DRV reliance on the PRC continued through the 1950s. Mao's "Three Worlds" theory and the radicalisation of Chinese foreign policy under Lin Biao's "Long Live the Victory of People's War" (3 September 1965) celebrated Vietnamese resistance.

The Sino-Soviet split

The split of 1960 to 1963 (Khrushchev's de-Stalinisation, the Sino-Soviet withdrawal of advisers, the polemics of 1961 to 1964) created an opportunity and a problem for Hanoi. Both communist powers wanted to be seen leading the anti-imperialist struggle; Hanoi could play them off.

Initially in 1960 to 1964 Hanoi tilted toward Beijing. Le Duan's faction was Maoist in style; the radical 9th Plenum of 1963 endorsed Chinese revolutionary diplomacy. But Beijing's "no concessions" stance and the cultural revolution chaos from 1966 alienated Hanoi.

Brezhnev and the Soviet escalation

Khrushchev's ouster on 14 October 1964 brought Leonid Brezhnev's leadership. Premier Aleksei Kosygin visited Hanoi on 6 to 10 February 1965. The visit coincided with the Pleiku attack and the launch of Rolling Thunder. Kosygin pledged substantial Soviet aid.

Soviet aid 1965 to 1973 included:

• SAM-2 (S-75 Dvina) surface-to-air missile systems (the first US B-52 hit by a SAM on 24 July 1965 over Hanoi),
• MiG-17, MiG-19, and MiG-21 fighters,
• T-54 main battle tanks (around 700 by 1972),
• SA-7 shoulder-fired missiles,
• BM-21 multiple rocket launchers,
• Antonov and Il-14 transport aircraft.

Total Soviet aid was estimated by US intelligence at around $1.8 billion in 1973 dollars, the larger share of DRV imports from 1968 onwards. Soviet technicians trained PAVN air defence troops; up to 3,000 Soviet personnel were in Vietnam through the war.

Chinese aid 1965 to 1973

PRC aid responded to the Soviet challenge. Mao authorised the deployment of around 320,000 Chinese troops to Vietnam (1965 to 1971), the largest Chinese foreign deployment between the Korean War and the 1979 invasion. The Chinese force was:

• engineering units (railways, roads, bridges, anti-aircraft positions),
• around 150,000 anti-aircraft artillery troops (around 1,000 PRC AAA dead),
• support units in the northern provinces.

The deployment freed PAVN regulars for the south. PRC aid included around 5 million tonnes of supplies and around 90,000 to 100,000 tonnes of munitions a year at peak.

Chinese influence was constrained by the Cultural Revolution chaos (1966 to 1969) and by Mao's interest in keeping Vietnam from victory too quickly (a long war kept the United States bogged down).

Hanoi's balancing act

The DRV accepted aid from both and refused to align. Le Duan and Le Duc Tho navigated the polemics. Le Duan's October 1957 visit to Moscow had begun the relationship; his March 1971 visit reconfirmed it during the period of US-China rapprochement.

The DRV preserved diplomatic relations with both communist powers throughout. Public communications avoided endorsement of either side's polemical line. Mao's complaints (recorded in Cultural Revolution-era documents) that Vietnam was insufficiently grateful reflected this independence.

Nixonian triangular diplomacy

Nixon and Kissinger turned the Sino-Soviet split against Hanoi. Kissinger's secret visit to Beijing (9 to 11 July 1971) opened the China relationship. Nixon's Beijing visit (21 to 28 February 1972) and Moscow summit (22 to 30 May 1972) made the US the swing power between the two communist capitals.

The diplomatic pressure on Hanoi was real. Beijing reduced rhetorical support during the Easter Offensive and counselled negotiation. Moscow, focused on detente and SALT I (signed 26 May 1972), urged Hanoi to settle. Linebacker I (10 May to 23 October 1972) included the mining of Haiphong harbour, where Soviet ships were docked, and neither communist power broke detente in response.

But the leverage was limited. PRC and Soviet aid continued. The Politburo refused to accept terms that excluded PAVN from the south. The Paris Peace Accords of 27 January 1973 were negotiated despite Nixon's triangular pressure.

The post-1975 alignment

After 1975 Hanoi tilted decisively toward Moscow. Vietnam joined the Council for Mutual Economic Assistance (COMECON) on 28 June 1978. The Treaty of Friendship and Cooperation between the USSR and Vietnam was signed in Moscow on 3 November 1978, providing for "immediate consultations" in the event of attack.

The treaty was the precondition for the Cambodian invasion of 25 December 1978. The USSR provided air and naval support; Soviet ships docked at Cam Ranh Bay; Soviet supplies underwrote the 200,000-strong Vietnamese garrison in Cambodia through the 1980s.

China responded with the punitive invasion of 17 February 1979 (see related dot point). The Soviet Union did not directly intervene but supplied Vietnam massively during and after. The conflict ended as a clear Sino-Soviet proxy contest.

Historiography

Qiang Zhai (China and the Vietnam Wars, 2000) is the standard on PRC involvement.

Ilya Gaiduk (The Soviet Union and the Vietnam War, 1996) and The Soviet Union and the United States in Vietnam, 1964 to 1973 on the Soviet side.

Chen Jian (Mao's China and the Cold War, 2001) on the broader Chinese strategy.

Lien-Hang Nguyen (Hanoi's War, 2012) on the DRV's balancing.

Common exam traps

Treating Hanoi as a Soviet or Chinese client. Hanoi balanced; that was its strategy.

Underestimating Chinese troop presence. Around 320,000 PRC troops served in north Vietnam from 1965 to 1971.

Forgetting the Sino-Vietnamese war. 17 February to 16 March 1979 is the end-point of the Indochina conflict in the dot point.

In one sentence

China provided the sanctuary, training, and artillery that transformed the Viet Minh into a regular army for the First Indochina War, the Soviet Union provided the SAM-2s, MiG-21s and T-54 tanks that allowed the DRV to absorb US air power and to launch conventional offensives in 1972 and 1975, the Sino-Soviet split allowed Hanoi to balance between Moscow and Beijing through Le Duan's strategic neutrality, and the post-1975 Vietnamese alignment with the USSR through the 3 November 1978 Treaty produced the Sino-Vietnamese war of February to March 1979 that closed the conflict.