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Battle of Sông Bé
Part of the Vietnam War
Date May 10–15, 1965
Location Song Be, South Vietnam

UTM Grid YU 19-11[1]

Result South Vietnamese and American victory; Vietcong successfully retreats
FNL Flag Viet Cong Flag of South Vietnam South Vietnam
Flag of the United States United States
2,500 Unknown
Casualties and losses
85 killed Flag of South Vietnam 49 killed
Flag of the United States 5 killed

The Battle of Sông Bé was a major action between the National Front for the Liberation of South Vietnam (Viet Cong) and Army of the Republic of Vietnam (ARVN) in May 1965.

Planned as a major show of force against the ARVN forces, the NLF attempted to capture the fortified capital of Phuoc Long province, Song Be. Perhaps to their surprise, ARVN forces in the area rallied and re-took the town by the end of the second day of combat. Several additional days of chasing the NLF forces involved proved fruitless, as they escaped.


A series of political and military setbacks starting as early as 1962 had been gradually eroding the combat effectiveness of the ARVN forces, originally more than a match for the VC with their United States supplied helicopters and armored personnel carriers. The NLF forces had been left to train in relative safety and had developed new tactics and been supplied with new weapons that upset the balance of power. By 1964 ARVN morale was collapsing and the NLF was in nominal control of much of the countryside. To capitalize on this, the NLF was planning ever-larger operations.

On April 16, 1965, the U.S. Special Forces SF B-34 Detachment was sent to Song Be to reinforce the ARVN forces, joining an existing MACV team headquarters in the town. They set about building up a fortified area on a nearby hill and were joined by the POW intelligence team, 120 ARVN, and several light tanks manned by local militiamen.


At 01:45 on May 10, the NLF 761st and 763d Regiments consisting of two thousand five hundred infantry attacked the city from multiple directions, first using mortar barrages and then rushing in their forces. Even though the American positions were still being constructed, the special forces and 120 ARVN were able to stop them from overrunning their positions and the area of the town around them. Hung up on the defenses, many of the Viet Cong became easy targets for U.S. snipers. At 03:45 helicopter gunships arrived but were unable to see the ground because of fog and low clouds. They instead attacked supporting artillery (likely 82mm mortars) west of the town. Attempts to evacuate casualties from the U.S. positions in medivacs (UH-1C's) were repeatedly driven off by 50-caliber machine guns, until these were suppressed by F-4 Phantoms using special cluster munitions. The machine guns silenced, the evacuation finally took place at 08:00.

Even though the U.S. base had been defended, much of the town had fallen to rebel control. They positioned machine gun and flamethrower units at almost every street corner. At noon, the 36th ARVN Ranger battalion brazenly attacked into the town, and drove off the VC occupying the center of the town, often resorting to melee combat using knives and swords. This is surprising in some regards, since the Rangers were local irregular forces and generally had not performed well against the NLF in prior battles. They were joined a few hours later by the 34th ARVN Rangers, and by evening the entire town was returned to southern control.


  1. Kelley, Michael P. (2002). Where We Were In Vietnam. Hellgate Press. pp. 5–471. ISBN 1-55571-625-3. 


  • Bowman S.John(1989)The Vietnam War: Day by Day. Bison Group, London.
  • Battle of Song Be

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