Constituted 5 August 1917 in the National Army as Headquarters, 173d Infantry Brigade, and assigned to the 87th Division

Organized 25 August 1917 at Camp Pike, Arkansas

Demobilized in January 1919 at Camp Dix, New Jersey

Reconstituted 24 June 1921 in the Organized Reserves as Headquarters and Headquarters Company, 173d Infantry Brigade, and assigned to the 87th Division

Organized in December 1921 at Mobile, Alabama

Redesignated 23 March 1925 as Headquarters and Headquarters Company, 173d Brigade

Redesignated 24 August 1936 as Headquarters and Headquarters Company, 173d Infantry Brigade

Converted and redesignated 13 February 1942 as the 87th Reconnaissance Troop (less 3d Platoon), 87th Division (Headquarters and Headquarters Company, 174th Infantry Brigade, concurrently converted and redesignated as the 3d Platoon, 87th Reconnaissance Troop, 87th Division)


Troop ordered into active military service 15 December 1942 and reorganized at Camp McCain, Mississippi; concurrently redesignated as the 87th Cavalry Reconnaissance Troop, an element of the 87th Infantry Division

Reorganized and redesignated 2 August 1943 as the 87th Reconnaissance Troop, Mechanized

Inactivated 21 September 1945 at Fort Benning, Georgia

Redesignated 28 April 1947 as the 87th Mechanized Cavalry Reconnaissance Troop

Activated 12 May 1947 at Birmingham, Alabama

(Organized Reserves redesignated 25 March 1948 as the Organized Reserve Corps; redesignated 9 July 1952 as the Army Reserve)

Reorganized and redesignated 18 May 1949 as the 87th Reconnaissance Company

Inactivated 1 December 1951 at Birmingham, Alabama

Converted and redesignated (less 3d Platoon) 26 March 1963 as Headquarters and Headquarters Company, 173d Airborne Brigade, and relieved from assignment to the 87th Infantry Division; concurrently withdrawn from the Army Reserve, allotted to the Regular Army, and activated on Okinawa (3d Platoon, 87th Reconnaissance Company - hereafter separate lineage)

Inactivated 14 January 1972 at Fort Campbell, Kentucky

Activated 16 October 2000 in Italy

Headquarters and Headquarters Company
173d Airborne Brigade Honors

Campaign Participation Credit

World War I: Streamer without inscription

World War II: Rhineland; Ardennes-Alsace; Central Europe

Vietnam: Defense; Counteroffensive, Phase I; Counteroffensive, Phase II; Counteroffensive, Phase III; Tet Counteroffensive; Counteroffensive, Phase IV; Counteroffensive, Phase V; Counteroffensive, Phase VI; Tet 69/Counteroffensive; Summer-Fall 1969; Winter-Spring 1970; Sanctuary Counteroffensive; Counteroffensive, Phase VII; Consolidation I

Decorations

Presidential Unit Citation (Army) for DAK TO

Meritorious Unit Commendation (Army) for VIETNAM 1965-1967

Republic of Vietnam Cross of Gallantry with Palm for VIETNAM 1965-1970

Republic of Vietnam Civil Action Honor Medal, First Class for VIETNAM 1969-1971