[1] Converted and Redesignated 23 February 1942 as 100th Reconnaissance Troop (less 3rd Platoon), 100th Division (Headquarters and Headquarters Company, 200th Infantry Brigade, concurrently converted and redesignated as the 3rd Platoon, 100th Reconnaissance Troop, 100th Division).

Nicknamed "the Redcatchers", the unit was hastily moved to Sông Bé, Vietnam on 10 December 1966 to provide an increased U.S. presence in the III Corps Tactical Zone and remained there until its return to Fort Benning on 11 October 1970.

[2] The brigade was conducting Operation Uniontown in Đồng Nai Province when the 1968 Tet Offensive began.

It immediately began a defense of U.S. II Field Force headquarters at Long Binh Post against attacks by the VC 275th Regiment.

One battalion was moved by helicopter to attack a Vietcong command post at the Phu Tho racetrack inside Saigon, then engaged in house-to-house fighting in Cholon.

[2] During 1969, the 199th was responsible for the security of the region north and east of the capital, and in 1970 moved into the "Iron Triangle" when other units participated in the Cambodian Incursion.

He wrote two books about his experiences there: The Only War We Had: A Platoon Leader's Journal of Vietnam (New York: Ivy Books/Random House, 1987); and Vietnam 1969-1970: A Company Commander's Journal (New York: Ivy Books/Random House, 1988).