Operation Mastiff

Operation Mastiff
Part of the Vietnam War
Date21–25 February 1966
Location11°07′44″N 106°18′29″E / 11.129°N 106.308°E / 11.129; 106.308
Result Inconclusive
Belligerents
United States North Vietnam
Commanders and leaders
MG Jonathan O. Seaman
Units involved
1st Infantry Division 9th Infantry Division
Casualties and losses
17 killed US body count: 61 killed

Operation Mastiff was an operation conducted by the US 1st Infantry Division in the Dầu Tiếng District, lasting from 21 to 25 February 1966.