3rd Squadron 4th Air Cavalry regiment F Troop patch

Troop F, 4th Cavalry was activated on 10 February 1971 in Vietnam and assigned to the 25th Division as a separate air cavalry troop in support of the 25th Division's 2nd Brigade. After the 2nd Brigade left Vietnam on 30 April 1971, Troop F remained assigned to the 25th while serving with the 11th and 12th Aviation Groups. It was one of the last Army units to leave Vietnam on 26 February 1973