Operation Diamond Head

Operation Diamond Head
Part of Vietnam War
Date11 July - 31 October 1967
ResultU.S. claims operational success
 United StatesVietnam North Vietnam
Commanders and leaders
MG John C. F. Tillson
3rd Brigade, 25th Infantry Division101st Regiment
165th Regiment
Casualties and losses
35 killedUS body count: 136 killed

Operation Diamond Head was an operation conducted by the 3rd Brigade, 25th Infantry Division in Tây Ninh Province, lasting from 11 July to 31 October 1967.[1]


In May U.S. intelligence located a People's Army of Vietnam (PAVN) supply base in the Angel's Wing area of Cambodia's Svay Rieng Province and learned that a two battalion attack would be made from this sanctuary into Tây Ninh Province in July.[1]

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