Tet Offensive - An Explanation
The Tet Offensive was a series of battles in the Vietnam War. It
was a major offensive by the North Vietnamese Army (NVA) and Viet Cong (VC or NLF) beginning on the night of
January 30-31, 1968, T?t Nguyên Ðán (the lunar new year day). It involved military action in almost every major
city in southern Vietnam and attacks on the US firebase at Khe Sanh. The NVA suffered a heavy military defeat but
scored a priceless propaganda victory.
The Communist forces had taken a series of military defeats. the
US/ARVN forces had pacified much of the south by the end of 1967 (222 out of 242 provinces). Operation Junction
City (February-March 1967) and other sweeps had seriously disrupted NLF activity in the south and forced the COSVN
At a July 1967 meeting the Communist Party leadership recognised
their failures and decided to re-orientate their operations to target two key political weaknesses. Firstly, the
deep gulf between the US public and the US government over support for the war and its actual progress. Secondly,
the tensions existing between the US military and their Vietnamese allies.
The leadership decided to concentrate on a few high profile
operations, that would take place in the public (and the US media) eye rather than fighting the conflict away from
major urban centres. This would bolster Northern moral, possibly inspire uprisings in the South and provide the
impression, and hopefully the reality, that the US/ARVN were not winning the war and it was likely to be a long
time before they did. The new policy also marked a victory for the 'hawks' over the 'doves' in the Communist Party
leadership, in late 1967 around 200 senior officials were purged.
The overall planning of the operation to match the policy was
headed by the commander of the NVA, Vo Nguyen Giap. He planned a series of audacious, prominent raids across the
south, involving every significant city and utilising almost every unit to hand in almost forty major attacks and
countless smaller incidents. In pure military terms this was almost madness, but Giap was pursing the overall
policy and was acutely aware that the weaknesses in US military policy could produce success in the longer term
from a short term disaster. He also strongly hoped that the NLF and NVA efforts would provoke a general popular
uprising in the south.
Tet had traditionally been a truce during war in Vietnam, the NLF
had had some form of truce since fighting began against the French. With the need for surprise paramount the NLF
and the NVA announced that they would respect a seven day cease-fire from January 31. This unusually long period
was designed to comfort the US military, who would interpret it as the action of a force in real need of a break,
and also encourage ARVN commanders to give their troops home leave. The NVA was aware of the resentment attacking
at Tet would cause amongst civilians.
As another part of the NVA deception they opened tentative peace
talks with the US military. They hoped to foster the impression of their weakness and also hoped that the US would
try to force concessions from the South Vietnam government in response to NVA conditions.
The most significant and costly deception was to offer the US a
major threat away from the urbanised south. Two major US bases to the north, near the border, were targeted. With
the memories of Diên Biên Phû it was hoped that the attacks on isolated outposts would draw heavy US military (and
media) attention. The two bases were at Dak To and Khe Sanh. Dak To was attacked over November and the Khe Sanh
attack would begin a few days before the other operations in the south.
The similarities between Diên Biên Phû and Khe Sanh were intended
to beguile US advisors. Khe Sanh was near the Ho Chi Minh Trail, only 20 km from the north-south border and 8 km
from Laos, in high and difficult terrain resupply could be impossible in poor weather and the base sprawled over a
wide area. The nearby Special Forces base at Lang Vei also looked vulnerable. Khe Sanh was defended by two
regiments of the USMC commanded by Colonel Lownds and a numerically similar ARVN force.
In the face of all the intelligence the US military response was
uneven. The belief that Khe Sanh was about to be a major battle was well established, MACV staff became certain
that a decisive clash was imminent. The base was reinforced and thousands of UGSs were scattered in the surrounding
jungle in Operation Niagara. US intelligence identified at least 15,000 NVA troops in the vicinity.
The fighting was most intense around Khe Sanh. There were three
divisions of NVA regulars around Khe Sanh, possibly 25,000 men. Action began there around ten days before Tet, with
probing attacks and exchanges of artillery fire. Two hill positions were captured on January 20, cutting the base
from land routes. Attention in MACV and Washington was obsessed with Khe Sanh and other indicators of trouble were
overlooked or down-graded. The main assaults did not begin until February 5. Lang Vei was over-run on February 7
and the lines at Khe Sanh were very heavily attacked, the camp only being preserved by massive airstrikes and
artillery barrages (over 30,000 sorties were flown in defence of the base). After this the tempo slowed, the battle
became more of a siege, although there were further NVA assaults on the 17-18th and the 29th. Khe Sanh was
officially relieved on April 6 and fighting ended around April 14. Possibly 8,000 NVA soldiers died around Khe
Two Marines take shelter against incoming shells in Hue during the Tet
To the south the fighting began on January 29 as a number of NLF
units began their attacks prematurely in four provincial towns. The rest of the NLF/NVA attacks began on the night
of 30-31st. All but eight provincial capitals were attacked, five of the six autonomous cities, and 58 other major
towns. Major attacks were aimed at Ban Me Thuot, Quang Nam, Dalat, My Tho, Can Tho, Ben Tre, Nha Trang, and Kontum.
It was only in Hué, the ancient capital, and Saigon that the NVA had any significant success. The hoped for popular
uprising (khnoi nghai) almost completely failed to occur, many South Vietnamese demonstrated stronger support for
North Vietnamese soldiers in Hue guard a position with
Chinese-made AK47 rifles. To photograph NVA units, French photographer Catherine Leroy worked her way behind
Communist lines during the battle.
Hué was attacked by ten battalions, the city was almost completely
over-run and thousands of civilians were chosen for execution. The city was not recaptured by the US and ARVN
forces until the end of February. The historical and cultural value of the city meant that the US did not apply the
air and artillery strikes as widely as in other cities, at least at first. There was a tough street-by-street
battle (all caught by the US media), heading towards the Citadel, the imperial palace, which was cleared of NVA
troops after four days of struggle. The US and the ARVN had lost 482 men and the NVA around 7,500.
Americans hastily drag
away the body of a comrade killed during a VC attack near Tan Son Nhut Airport on January 31, 1968. The VC made a
direct hit on a truckload of MPs, then raked the area with automatic fire as survivors dived for
There were a number of attacks in and around Saigon, around five
battalions of NLF had infiltrated the city. Tan Son Nhut airbase, the headquarters of the ARVN and MACV, was
attacked by around 700 men and there was heavy fighting but only 110 American casualties. Bein Hoa airbase was also
attacked and twenty aircraft were destroyed. The Vietnamese casualties in these two assaults and other actions in
Saigon were over 1,100 men but they took control of large parts of the city. Fighting lasted almost a week and some
sections of the city were badly damaged by US airstrikes and artillery, the suburb of Cholon was very badly damaged
as fighting there lasted into mid-February. One especially potent assault was on the US Embassy by twenty NLF
commandos, while quickly contained it became a highly symbolic assault producing memorable images.
The NLF and the NVA lost around 35,000 men killed, 60,000 wounded
and 6,000 POWs for no military success. The US and ARVN dead totalled around 3,900 (1,100 US). But this was not the
conflict as the US public saw it. Without there being an active conspiracy the US media reports were extremely
damaging and shocked the American public and politicians. Apparently the depth of the US reaction even surprised
the North Vietnamese leadership, as well as delighting them.
The heavy US shelling of Ben Tre produced the famous quote, "it
became necessary to destroy the town in order to save it."
Khe Sanh was abandoned by the US on June 23, 1968.