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 Vietnam North Vietnam
Commanders and leaders
MG Jonathan O. Seaman
Units involved
1st Infantry Division 9th Infantry Division
Casualties and losses
17 killed 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.