Operation Paul Revere IV
| Operation Paul Revere IV | |||||||
|---|---|---|---|---|---|---|---|
| Part of Vietnam War | |||||||
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| Belligerents | |||||||
 United States
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 North Vietnam
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| Commanders and leaders | |||||||
| MG Arthur S. Collins | MG Chu Huy Mân | ||||||
| Strength | |||||||
|
33rd Regiment 95B Regiment 101C Regiment |
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| Casualties and losses | |||||||
| ~300 killed | ~1200 killed | ||||||
Operation Paul Revere IV was a US Army operation that took place in the Plei Trap Valley, lasting from 20 October to 30 December 1966.
In early October 1966 intelligence reported a buildup of People's Army of Vietnam (PAVN) units near Plei Djereng and Đức Cơ Special Forces Camps southeast of the Plei Trap Valley near the Vietnam-Cambodia border.
On 20 October the 3rd Brigade, 25th Infantry Division deployed to Plei Djereng and began to sweep northwest towards the southern Plei Trap and the Cambodian border engaging platoon-sized units from the PAVN 95B Regiment, 10th Division. On 22 October the 2nd Brigade, 4th Infantry Division arrived at Plei Djereng and began sweeping west.
The two US Brigades found abandoned PAVN base camps and few enemy, but were subjected to attacks on their night defensive positions. On 30 October the 2nd Brigade, 1st Cavalry Division deployed to Landing Zone Oasis to protect Đức Cơ and the rear of the US force. On 5 November 6 US Battalions moved north along two parallel lines of advance into the Plei Trap Valley, while a combined Army/Special Forces unit called "Task Force Prong" (TF Prong) moved directly west towards the Cambodian border.
On 9 November the southern element of TF Prong was ambushed and fought a day-long battle with PAVN forces before the PAVN broke contact. On 10 November reinforced by a rifle Company, TF Prong moved back to the ambush area and was again ambushed by elements of the PAVN 88th Regiment. Reinforcements were deployed by helicopter and linked up with TF Prong by midnight. On the morning of 11 November the northern element of TF Prong was ambushed by the PAVN and had to mount a day-long fighting retreat.
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