Operation Fillmore
Part of theVietnam War
Date 26 March – 21 July 1966 Location Phú Yên Province,South Vietnam Result Inconclusive
Belligerents
United States	North Vietnam
Commanders and leaders
BGWillard Pearson
Units involved
1st Brigade, 101st Airborne Division
Casualties and losses
8 killed	U.Sbody count: 134 killed 35 captured

Operation Fillmore was an operation conducted by the1st Brigade, 101st Airborne Division inPhú Yên Province, lasting from 26 March to 21 July 1966.^[1]

OperationFillmore was a continuation of the harvest security operations ofOperation Harrison.^[1]

The1st Battalion, 327th Infantry Regiment was retained as a reserve force atTuy Hoa Air Base, while the 2/327th Infantry and the2nd Battalion, 502nd Infantry Regiment patrolled the rice-growing plains and the western foothills.^[1]

In early April, 2/502nd Infantry was rotated to Tuy Hoa Air Base and 1/327th and 2/327th began a block and sweep operation in the mountains northwest ofTuy Hòa. On 7 April a company from 1/327th engaged an entrenched company-sized force, killing 28 defenders.^[1]

Given that the PAVN had apparently withdrawn from the Tuy Hòa Valley, on 9 April 1/327th and 2/502nd were redeployed, leaving only the 2/327th Infantry to continue operations.^[1]: 194

Operation Fillmore officially concluded on 21 July, the US claimed PAVN losses were 134 killed and 35 captured, U.S. losses were 8 killed.^[1]: 194

 This article incorporatespublic domain material from websites or documents of theUnited States Army Center of Military History.

• Battles of the Vietnam War involving the United States
• Battles and operations of the Vietnam War in 1966
• History of Phú Yên province

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