Constituted 1 July 1916 in the Regular Army as Troop A, 17th CavalryOrganized 9 July 1916 at Fort Bliss, TexasInactivated 26 September 1921 at the Presidio of Monterey, CaliforniaReconstituted 1 September 1957 in the Regular Army and consolidated with the 82d Airborne Reconnaissance Company (active) (see ANNEX) and consolidated unit designated as Troop A, 17th Cavalry, an element of the 82d Airborne Division