← Section III (Peace and Conflict): Conflict in Indochina 1954-1979
What was the significance of the Tet Offensive of 1968?
The Tet Offensive of January to March 1968, including the planning by the DRV and the NLF, the attacks on Saigon and Hue, the response of the United States and the Republic of Vietnam, and the political and strategic consequences
A focused answer to the HSC Modern History Indochina dot point on the Tet Offensive. Le Duan's planning, the attacks of 30 to 31 January 1968 across more than 100 cities and bases, the embassy raid in Saigon, the battle for Hue from 31 January to 25 February 1968, Khe Sanh, the military defeat of the PLAF, Walter Cronkite's broadcast, and Johnson's 31 March 1968 speech.
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What this dot point is asking
NESA expects you to analyse the planning, execution, and consequences of the Tet Offensive of 1968. Strong answers cover Le Duan's strategic decision, the Khe Sanh diversion, the simultaneous urban attacks of 30 to 31 January, the iconic Saigon embassy raid, the Hue battle and massacre, the military destruction of the PLAF, and the political collapse of the Johnson administration that produced the speech of 31 March 1968.
The answer
The planning
The DRV Politburo had debated strategy through 1967. Le Duan's militant faction pushed for a decisive blow; General Nguyen Chi Thanh (COSVN commander, died 6 July 1967) had championed conventional escalation; General Vo Nguyen Giap urged a longer war. Resolution 13 of the Politburo (January 1967) authorised the "decisive victory" doctrine; Resolution 14 (January 1968) authorised the "General Offensive, General Uprising" (Tong Cong Kich, Tong Khoi Nghia).
The plan had three phases. Phase one (autumn 1967): border battles to draw US forces from the cities. Phase two (Tet 1968): simultaneous attack on the cities to trigger a southern uprising. Phase three: exploit chaos to force a coalition government on the Saigon regime.
Khe Sanh, a Marine Corps combat base near the DMZ, was besieged from 21 January 1968 by PAVN forces. Around 6,000 Marines held off two PAVN divisions for 77 days; the siege drew US air power and intelligence focus. Johnson watched a Khe Sanh sand table in the White House Situation Room.
The attacks
The lunar new year ceasefire was supposed to hold from 27 January. Premature attacks at Pleiku, Nha Trang, and Da Nang on 30 January warned MACV but the main wave still achieved surprise on the night of 30 to 31 January 1968.
Targets across South Vietnam: 36 provincial capitals, 5 of the 6 autonomous cities (Saigon, Hue, Da Nang, Qui Nhon, Nha Trang), 64 district capitals, around 50 hamlets, and dozens of US and ARVN bases. Around 80,000 PAVN and PLAF troops participated.
In Saigon, a 19-man PLAF sapper team breached the US Embassy compound on Thong Nhut Boulevard at 0247 on 31 January. The team held the courtyard for around six hours. Five Americans and all 19 sappers were killed. The fighting was televised live in the United States. ARVN and US forces also fought to retake Tan Son Nhut airbase, the Presidential Palace, and the radio station.
Eddie Adams's photograph of National Police Chief Nguyen Ngoc Loan executing the PLAF officer Nguyen Van Lem on a Saigon street on 1 February 1968 won the Pulitzer Prize and became one of the war's defining images.
Hue
The most prolonged urban battle was at Hue, the former imperial capital. PAVN and PLAF (around 10,000 troops, including the 6th PAVN Regiment) occupied the Citadel from 31 January 1968. US Marine units (2nd Battalion 5th Marines, 1st Battalion 1st Marines) and ARVN forces fought house by house. The Citadel was retaken on 25 February 1968.
The Hue massacre: during the 25-day occupation, the PLAF identified and executed around 2,800 civilians (officials, teachers, priests, foreigners, and suspected collaborators). Mass graves were uncovered at Phu Thu, Gia Hoi, Da Mai Creek, and elsewhere through 1969. The massacre was the largest atrocity committed by the communist side during the war and is heavily evidenced in post-war refugee testimony.
US air and artillery fire destroyed around 80 per cent of Hue's historic buildings. Around 5,800 civilians died, plus around 600 US personnel, 400 ARVN, and 5,000 PAVN/PLAF.
Khe Sanh
The siege of Khe Sanh ran from 21 January to 9 July 1968. The 26th Marine Regiment, supported by ARVN Ranger and Special Forces units, held the base against the PAVN 304th and 325C Divisions. Operation Niagara delivered around 100,000 tonnes of air-dropped munitions, the heaviest tactical air support of the war. US losses: 274 killed at the base, around 1,300 wounded. PAVN losses: around 5,500 killed.
The base was abandoned in July 1968 after the offensive failed. The strategic question (whether Khe Sanh was a serious siege or a diversion) is contested; the consensus is that it was both, more important politically than strategically.
The military and political verdicts
Militarily, Tet was a defeat for the DRV. PAVN and PLAF lost around 45,000 killed across the three waves of Tet (Tet 1 January to March, Tet 2 in May, Tet 3 in August-September). The southern PLAF was so weakened that PAVN regulars dominated the rest of the war. The popular uprising did not occur.
Politically, Tet broke the credibility of the administration's optimistic assessments. President Johnson and General Westmoreland had claimed in November 1967 that there was "light at the end of the tunnel". Tet appeared to refute that on television screens.
Walter Cronkite, the most trusted news anchor in the United States, returned from Vietnam and on 27 February 1968 declared on CBS Evening News that the war was a stalemate. Johnson reportedly told aides, "If I've lost Cronkite, I've lost Middle America".
Senator Eugene McCarthy nearly defeated Johnson in the New Hampshire primary on 12 March 1968 (49.5 to 42.2 per cent on a write-in campaign). Robert Kennedy entered the race on 16 March. Westmoreland's request for an additional 206,000 troops on 28 February was leaked to The New York Times on 10 March.
On 31 March 1968 Johnson delivered a televised address. He stopped Rolling Thunder bombing above the 20th parallel, offered peace talks, and announced "I shall not seek, and I will not accept, the nomination of my party for another term as your President".
Paris peace talks opened on 13 May 1968. Westmoreland was replaced by Creighton Abrams on 11 June 1968. Vietnamisation began.
Historiography
Don Oberdorfer (Tet!, 1971) is the standard contemporary narrative.
James Willbanks (The Tet Offensive: A Concise History, 2007) is a useful overview.
Mark Bowden (Hue 1968, 2017) is the recent narrative of the Hue battle.
Peter Braestrup (Big Story, 1977) argues the US media misread Tet as a defeat when it was a victory; the view is contested.
Common exam traps
Treating Tet as a US military defeat. Tet was a tactical defeat for the DRV; the political effect on US opinion is what made it strategically decisive.
Forgetting the Hue massacre. It is the major communist atrocity of the war and is examinable.
Confusing Khe Sanh with the urban attacks. Khe Sanh was the diversion, not the main effort.
In one sentence
The Tet Offensive of January to March 1968, planned by Le Duan as the "General Offensive, General Uprising", launched on the night of 30 to 31 January 1968 against more than 100 cities and bases including the US Embassy in Saigon and the Citadel of Hue, was a military defeat for the DRV that destroyed the PLAF and produced the Hue massacre but a political defeat for the United States that broke President Johnson's commitment to escalation and ended in his 31 March 1968 announcement that he would not seek re-election.
Past exam questions, worked
Real questions from past NESA papers on this dot point, with our answer explainer.
Practice (NESA)15 marksAssess the significance of the Tet Offensive in the conflict in Indochina.Show worked answer →
Needs a clear judgment, dated evidence, and a balance of military and political consequences.
Thesis. The Tet Offensive was a military defeat for the DRV and a political defeat for the United States. The shock to American public opinion broke Lyndon Johnson's presidency and shifted US strategy from escalation to withdrawal.
Planning. Le Duan's militant faction overrode caution. Politburo Resolution 14 (January 1968) authorised the "General Offensive, General Uprising". The Khe Sanh siege from 21 January 1968 was a diversion.
The attacks. PLAF sappers hit Saigon, Hue, Da Nang, Nha Trang, Qui Nhon and 36 provincial capitals on the night of 30 to 31 January 1968. A 19-man team breached the US Embassy in Saigon for six hours. Eddie Adams photographed General Nguyen Ngoc Loan executing Nguyen Van Lem on 1 February 1968.
Hue. PAVN and PLAF held the Citadel from 31 January to 25 February 1968. The PLAF killed around 2,800 civilians in the Hue massacre.
Military verdict. PAVN and PLAF lost around 45,000 dead. The PLAF was destroyed as a fighting force; the popular uprising did not occur.
Political verdict. Cronkite's CBS broadcast of 27 February 1968 called the war a stalemate. McCarthy's near-win in New Hampshire (12 March) and Robert Kennedy's entry (16 March) signalled collapse. On 31 March 1968 Johnson halted Rolling Thunder above the 20th parallel, offered talks, and announced he would not seek re-election.
Markers reward 30 to 31 January 1968, the Hue massacre, Cronkite, and 31 March 1968.
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