How MPs directed traffic during the Tet Offensive in Saigon
On 31 January 1968, Saigon became a battlefield of broken routines. The Tet Offensive brought coordinated attacks against military installations, government buildings, communications sites and streets that had usually carried a mixture of Vietnamese civilians, American personnel, taxis, buses and military vehicles. In that confusion, military police had to keep people and vehicles moving while deciding which roads were safe enough to use.
Traffic direction was therefore a combat task rather than ordinary roadside duty. MPs established control points, closed threatened approaches, separated civilian and military movement, guided convoys and helped emergency vehicles reach places under attack. Their work is often less visible in photographs than the fighting itself, yet it helped preserve a measure of order around Saigon’s key facilities.
| Normal Saigon movement | Conditions during the Tet Offensive |
|---|---|
| Civilian traffic, buses, taxis and military vehicles shared busy roads | Vehicles were mixed with troops, ambulances, security convoys and people fleeing danger |
| MPs regulated intersections and access to installations | MPs used roadblocks, hand signals and improvised rerouting around firefights and debris |
| Traffic control supported routine security | Traffic control became part of perimeter defence and emergency response |
| Routes were planned around predictable congestion | Routes changed rapidly as attacks developed across the city |
Saigon before the first shots
Saigon was already a crowded, fast-moving city before the offensive. Roads around the central business district, the Saigon River, Tan Son Nhut air base and major military headquarters carried a constant stream of movement. American installations depended on trucks, jeeps, buses and courier vehicles, while Vietnamese residents travelled for work, shopping and family obligations. A road that looked open could become unusable within minutes if a firefight began nearby.
The Tet holiday added another layer of uncertainty. Families traditionally travelled, businesses changed their hours and the normal security pattern was affected by the ceasefire expectations surrounding the holiday. When attacks began, the distinction between ordinary traffic and an operational movement route disappeared. A parked car, an abandoned scooter or a stalled truck could obstruct a road or create suspicion.
For Australians, the scale is easier to picture by comparing it with familiar urban pressure points, though the comparison has limits. Imagine traffic around Sydney’s CBD, Melbourne’s tram corridors or Brisbane’s river crossings suddenly operating under curfew, with armed attacks occurring several blocks away. A suburban “servo” might be a landmark for navigation in Australia; in Saigon, MPs often had to rely on recognisable buildings, checkpoints and changing reports rather than reliable road signs.
What traffic control meant to MPs
Military police traffic work normally involved regulating intersections, checking credentials, controlling access and directing military vehicles. During Tet, those duties merged with security operations. An MP at a junction had to decide whether a vehicle belonged through the area, whether a convoy should halt, and whether a road needed to be closed because of gunfire, casualties or an unsecured building.
The tools were basic but effective when used decisively. MPs relied on whistles, hand signals, flashlights, vehicles positioned as barriers and temporary barricades. They could divert a convoy down a side street, hold traffic while a casualty evacuation passed, or prevent unauthorised vehicles from approaching a defended installation. At night, visibility was poor and the sound of engines, automatic weapons and shouted instructions made every decision harder.
In Australian terms, “traffic control” can sound like a council work crew holding a stop-slow bat beside a road repair site. Saigon was something else entirely. The MP’s uniform and weapon identified him as part of the security system, and his position at an intersection could expose him to the same attack affecting the people he was trying to direct.
The mission also required communication. Radio reports, telephone calls and instructions from command posts helped MPs build a changing picture of the city. Information was incomplete, delayed or contradictory. A route reported clear could be threatened by the time a vehicle reached it, which meant traffic direction depended on judgement as much as formal orders.
The embassy and downtown routes
The attack on the United States Embassy became one of the most recognisable episodes of Tet in Saigon. Military police from the 716th Military Police Battalion were responsible for embassy security, and their actions at the compound have received substantial historical attention. The fighting around the embassy created an immediate need to control nearby streets, restrict movement and prevent vehicles or personnel from entering an unstable area.
Road control around a defended site served several purposes. It kept civilian traffic away from the line of fire, created space for armed response and allowed military vehicles to move without becoming trapped in a crowd. MPs also had to identify friendly personnel arriving under pressure. In a city where uniforms, vehicles and rumours were everywhere, a checkpoint could slow movement while guards confirmed who was authorised to pass.
Downtown routes were connected to the wider military network. Vehicles moving between the embassy, headquarters, hospitals, supply points and airfield could not simply follow their normal schedule. MPs helped channel those movements through roads that remained usable and kept unauthorised drivers away from sensitive locations. The work was repetitive in appearance—stop, check, wave through, divert—but each decision affected the speed of reinforcement and evacuation.
The famous images of MPs reflecting after the embassy battle show only one moment in a larger sequence. Before and after the photographs were taken, military police had to deal with damaged streets, anxious civilians, military traffic and the continuing possibility of renewed attacks. The stillness visible in a photograph should not be mistaken for a return to normality.
Working with Vietnamese authorities
American MPs did not control Saigon alone. Vietnamese National Police, South Vietnamese military personnel and local officials were essential to managing a city whose streets, language and population were unfamiliar to many American troops. Cooperation could involve sharing information, identifying routes, controlling civilians near military sites and clarifying which authority held responsibility for a particular road.
This relationship was practical rather than simple. Different forces had separate communications systems, rules and priorities. A Vietnamese officer might understand local movement patterns that an American MP could not see, while an American unit might possess better information about a threatened American installation. Effective traffic control depended on passing useful information quickly despite those differences.
Language and local knowledge mattered at every checkpoint. A driver who appeared confused might be a civilian trying to reach family, a courier carrying urgent material or someone attempting to exploit the chaos. MPs had to enforce restrictions while avoiding unnecessary escalation. The presence of civilians also made indiscriminate movement impossible: a blocked road could leave residents stranded, while an open road could expose them to danger.
This aspect of the work has a modern resonance for Australian readers. Traffic controllers around a Sydney construction site can rely on standard signs and familiar road rules, while MPs in Saigon operated within a layered authority structure during an emergency. The principles—clear signals, controlled access and coordinated movement—were recognisable, but the consequences of a mistake were far more severe.
Decisions made under fire
The Tet Offensive placed MPs in situations where traffic management and direct combat overlapped. A checkpoint could become a defensive position. A roadblock might protect a perimeter, yet it could also trap vehicles and people if the threat shifted. MPs had to keep routes open for ammunition, reinforcements and medical evacuation while ensuring that open access did not give attackers an easy path.
They also dealt with the physical consequences of fighting. Rubble, damaged vehicles, fallen power lines, abandoned equipment and crowds could turn a familiar intersection into a bottleneck. Even when MPs were not clearing obstacles themselves, they had to mark them, warn drivers and choose alternative routes. At night, headlights could reveal movement, while darkness concealed hazards and people.
Fatigue shaped the quality of every decision. Personnel might work for long periods with little rest, limited food and constant uncertainty. A person directing a convoy had to maintain concentration while hearing gunfire and watching for signs of attack. The task demanded discipline: panic at an intersection could spread quickly through drivers and passengers.
That is why the MP role should not be reduced to pointing vehicles in a particular direction. Traffic regulation supported command and control, protected access to vital installations and reduced the chance that military movement would collapse into gridlock. The job was a form of battlefield coordination carried out in public streets.
The idea of professional identity is useful when considering how such duties were remembered. People who served in specialised roles often had to explain work that looked ordinary from a distance but carried unusual responsibility; discussions of professional identity can help frame why technical, behind-the-scenes contributions deserve recognition alongside dramatic events.
Remembering the traffic mission
Accounts of Tet naturally focus on firefights, destroyed buildings and the political shock of the offensive. Traffic control can seem secondary because it rarely produces a single decisive scene. Yet the movement of people and supplies was central to the response. Roads connected defended points, medical facilities, command posts and airfields, and MPs helped keep those connections functioning when normal systems failed.
Their work also reveals the civilian dimension of urban combat. Every military convoy moved through a populated city. Every road closure affected residents. Every checkpoint required a balance between security and access. MPs were therefore involved in the daily negotiation between military necessity and the lives of people who had not chosen to become part of the battle.
Australian audiences may encounter this history through RSL displays, Anzac Day talks, family papers or the country’s well-established military memorabilia and archival market. Those settings often preserve photographs, unit patches and personal recollections that official operational histories leave at the margins. A caption identifying an MP beside a vehicle can open a wider story about guarding, escorting, checking and directing under pressure.
The language used in these memories also matters. Veterans may describe a road as “locked down,” a vehicle as “held up,” or a route as “hot,” while a formal report may use terms such as traffic control point, perimeter security or convoy regulation. Both forms of language describe the same reality from different angles: the effort to impose order on streets where the situation changed by the minute.
This independent historical tribute is intended to preserve that human scale. It is not endorsed by the U.S. Army or the Department of Defense. Remembering how MPs directed traffic during the Tet Offensive in Saigon means recognising a specialised service that linked security, logistics and survival, often without the public attention given to the battles they helped contain.
