Headquarters
171st Infantry Brigade
Lineage and Honors Information as of 25 April 2007
Headquarters, 171st Infantry Brigade Lineage
Constituted 5 August 1917 in the National Army as Headquarters, 171st Infantry Brigade, and assigned to the
86th Division
Organized 3 September 1917 at Camp Grant, Illinois
Demobilized in January 1919 at Camp Grant, Illinois
Reconstituted 24 June 1921 in the Organized Reserves as Headquarters and Headquarters Company, 171st Infantry Brigade, and
assigned to the 86th Division
Organized in July 1922 at Chicago, Illinois
Redesignated 23 March 1925 as Headquarters and Headquarters Company, 171st Brigade
Redesignated 24 August 1936 as Headquarters and Headquarters Company, 171st Infantry Brigade
Converted and redesignated 31 March 1942 as the 86th Reconnaissance Troop (less 3d Platoon), 86th Division (Headquarters and
Headquarters Company, 172d Infantry Brigade, concurrently converted and redesignated as the 3d Platoon, 86th Reconnaissance
Troop, 86th Division)
Troop ordered into active military service 15 December 1942 and reorganized at Camp Howze, Texas, as the 86th Cavalry
Reconnaissance Troop, an element of the 86th Infantry Division
Reorganized and redesignated 5 August 1943 as the 86th Reconnaissance Troop, Mechanized
Reorganized and redesignated 10 October 1945 as the 86th Mechanized Reconnaissance Troop
Inactivated 30 December 1946 in the Philippine Islands
(Organized Reserves redesignated 25 March 1948 as the Organized Reserve Corps; redesignated 9 July 1952 as the Army Reserve)
Converted and redesignated (less 3d Platoon) 20 May 1963 as Headquarters and Headquarters Company, 171st Infantry Brigade, and
relieved from assignment to the 86th Infantry Division; concurrently withdrawn from the Army Reserve and allotted to the Regular
Army (3d Platoon, 86th Reconnaissance Troop-hereafter separate lineage)
Brigade activated 1 July 1963 at Fort Wainwright, Alaska
Inactivated 13 November 1972 at Fort Wainwright, Alaska
Transferred 16 March 2007 to the United States Army Training and Doctrine Command; Headquarters concurrently activated at Fort
Jackson, South Carolina
Headquarters, 171st Infantry Brigade Honors
Campaign Participation Credit
World War I: Streamer without inscription
World War II: Central Europe
Decorations
None