Battle of Hue (1968): Urban Combat in Vietnam's Imperial City

The Battle of Hue was the longest and bloodiest single battle of the Tet Offensive, fought from 31 January to early March 1968 in Vietnam’s former imperial capital. North Vietnamese and Viet Cong forces seized most of the city in a surprise attack, and US Marines and South Vietnamese troops needed nearly a month of house-to-house fighting to take it back. The battle left much of Hue in ruins and was marked by the mass killing of civilians during the communist occupation.

Background: the old capital

Hue stands on the Perfume River (Song Huong) in central Vietnam, about 100 kilometres south of the Demilitarized Zone. From 1802 to 1945 it was the capital of the Nguyen dynasty, and its walled Citadel, enclosing the Imperial City, made it the country’s foremost historic and cultural centre. In 1968 it had a population of around 140,000.

Before Tet the city was lightly defended. The headquarters of the South Vietnamese 1st Division, under Brigadier General Ngô Quang Trưởng, lay inside the Citadel on the north bank, while a small American advisory compound (the MACV compound) stood in the new city on the south bank. Many South Vietnamese soldiers were on leave for the lunar new year holiday.

The attack

In the early hours of 31 January 1968, as part of coordinated attacks across South Vietnam, North Vietnamese regiments and Viet Cong units struck Hue. They quickly occupied most of the Citadel, raised their flag over its tower, and took much of the south bank. The 1st Division headquarters and the MACV compound held out but were isolated.

Over the following weeks the communist force in and around the city grew to an estimated 8,000 to 10,000 troops. Outside Hue, units of the US 1st Cavalry Division fought to cut the routes that supplied them from the west.

Retaking the city

The south bank

Initially American commanders underestimated the size of the enemy force. Marine companies sent up Highway 1 from Phu Bai fought their way to the MACV compound on the first day, and over the next ten days elements of two understrength Marine battalions (1st Battalion, 1st Marines and 2nd Battalion, 5th Marines) cleared the new city block by block.

This was a kind of war the Marines had rarely fought in Vietnam: urban combat, with every building a potential strongpoint. Troops advanced using recoilless rifles, tanks, tear gas and demolition charges, often moving through walls rather than along open streets. By about 10 February the south bank was largely secured.

The struggle for the Citadel

The fight for the Citadel was even harder. Its thick walls and narrow streets favoured the defenders, and in the early days restrictions were placed on artillery and air strikes to protect historic buildings. As casualties rose, those limits were relaxed and heavy weapons were used against the old city.

South Vietnamese troops pushed from the north while a Marine battalion entered the Citadel from about 12 February and fought along its southeastern wall. Progress was measured in metres. On 24 February South Vietnamese soldiers raised their national flag over the Citadel, and the Imperial Palace was retaken in the following days. The battle was officially declared over at the start of March.

Why the battle lasted so long

Several factors explain why retaking Hue took nearly a month. The attackers had prepared carefully, with detailed lists of targets and positions, and they were well armed and willing to fight for every building. Outside the city, they kept supply and reinforcement routes open from the hills to the west until US Army units gradually cut them off in late February.

On the allied side, commanders at first believed that only small enemy units were in the city and sent forces in piecemeal. Bad weather, with low cloud and drizzle for much of February, limited air support. The Marines involved had trained mainly for jungle and rural fighting, and had to learn urban tactics on the spot, using weapons such as recoilless rifles and tanks to open holes in walls.

The Citadel’s design also favoured defence. Its outer walls, built in the early 19th century in a style influenced by European fortifications, were several metres thick, and the houses and gardens inside offered countless firing positions.

The massacre of civilians

When the city was retaken, it became clear that thousands of civilians had died, many of them not in the crossfire. During the occupation, communist cadres had detained people they regarded as enemies, such as government officials, police, soldiers, teachers, Catholic clergy and some foreigners. Many were executed.

Mass graves found in and around Hue in 1968 and 1969 contained around 2,800 bodies, and estimates of the total number killed in the massacre range up to about 6,000 when the missing are included. Hanoi long played down or disputed these events, but the killings are documented by investigators and historians from a range of backgrounds. Many more civilians died from bombardment and fighting.

Key people

• Ngô Quang Trưởng, commander of the South Vietnamese 1st Division, whose headquarters held out and whose troops retook much of the Citadel.
• Marine battalion and company commanders, who adapted to street fighting with little preparation or doctrine.
• Walter Cronkite, the CBS news anchor, who reported from Hue and whose broadcast after returning from Vietnam became one of the best-known moments of the war’s media history.

By the numbers

Consequences

Hue was a military defeat for the communist forces, who lost their hold on the city and suffered heavy casualties. But it was also a major psychological blow to the United States and South Vietnam. Television brought images of Marines fighting street by street in a city that officials had considered secure.

On 27 February 1968 Walter Cronkite told his audience that the war seemed mired in stalemate, a verdict that symbolised the shift in American opinion after Tet. Together with the siege of Khe Sanh, Hue shaped the sense in Washington that victory was not in sight, and in March President Johnson announced limits on bombing and his decision not to run again. The reconstruction of Hue took years, and many of its historic monuments remained damaged for decades.

Timeline

• 1968, 31 January: North Vietnamese and Viet Cong forces attack Hue and occupy most of the city.
• 1968, 31 January: Marine reinforcements reach the MACV compound on the south bank.
• 1968, c. 10 February: The south bank is largely cleared.
• 1968, c. 12–13 February: A Marine battalion enters the Citadel to join the South Vietnamese assault.
• 1968, 24 February: The South Vietnamese flag is raised over the Citadel.
• 1968, 27 February: Walter Cronkite’s broadcast describing the war as a stalemate.
• 1968, early March: The battle is officially declared over.

Why it matters

Hue was the clearest example of how the Tet Offensive could be a battlefield setback for its planners and yet a turning point against the United States. It also remains a painful memory in Vietnam, where the destruction of the old capital and the killing of its civilians are still matters of grief and debate. Its lessons on urban warfare continue to be studied by armies today, as is the wider history of the Vietnam War.