5th Battalion, 5th Air Defense Artillery Regiment

Constituted 18 June 1861 in the Regular Army as Battery H, 5th Regiment of Artillery

Organized 4 July 1861 at Fort Greble, Pennsylvania

Reorganized and redesignated 13 February 1901 as the 54th Company, Coast Artillery, Artillery Corps

Redesignated 2 February 1907 as the 54th Company, Coast Artillery Corps

Redesignated 3 July 1916 as the 2d Company, Fort Wadsworth [New York]

Redesignated 31 August 1917 as the 6th Company, Coast Defenses of Southern New York

Redesignated 1 June 1922 as the 54th Company, Coast Artillery Corps

Redesignated 1 July 1924 as Battery E, 5th Coast Artillery, and inactivated in the Coast Defenses of Southern New York

Disbanded 26 June 1944

Reconstituted 28 June 1950 in the Regular Army; concurrently consolidated with Battery A, 214th Antiaircraft Artillery Gun Battalion (see ANNEX), and consolidated unit redesignated as Battery A, 24th Antiaircraft Artillery Gun Battalion

Redesignated 13 March 1952 as Battery A, 24th Antiaircraft Artillery Gun Battalion

Activated 16 April 1952 in Korea

Inactivated 20 December 1954 in Korea

Redesignated 23 May 1955 as Battery A, 24th Antiaircraft Artillery Missile Battalion

Activated 1 June 1955 at Fort Banks, Massachusetts

Redesignated 1 November 1956 as Battery C, 605th Antiaircraft Artillery Missile Battalion

Inactivated 1 September 1958 at Nahant, Massachusetts

Redesignated 6 April 1959 as Headquarters and Headquarters Battery, 5th Rocket Howitzer Battalion, 5th Artillery; concurrently withdrawn from the Regular Army, allotted to the Army Reserve, and assigned to the 94th Infantry Division (organic elements concurrently constituted)

Battalion activated 1 May 1959 with Headquarters at Boston, Massachusetts

(Headquarters and Headquarters Battery, 5th Rocket Howitzer Battalion, 5th Artillery consolidated 26 August 1960 with Battery E, 5th Field Artillery [organized in 1898], and consolidated unit designated as Headquarters and Headquarters Battery, 5th Rocket Howitzer Battalion, 5th Artillery)

Reorganized and redesignated 7 January 1963 as the 5th Howitzer Battalion, 5th Artillery, relieved from assignment to the 94th Infantry Division, and assigned to the 187th Infantry Brigade

Location of Headquarters changed 22 March 1963 to Roslindale, Massachusetts

Redesignated 31 January 1968 as the 5th Battalion, 5th Artillery

Redesignated (less former Battery E, 5th Field Artillery) 1 September 1971 as the 5th Battalion, 5th Air Defense Artillery; concurrently inactivated at Roslindale, Massachusetts, and relieved from assignment to the 187th Infantry Brigade (former Battery E, 5th Field Artillery, concurrently reorganized and redesignated as the 5th Battalion, 5th Field Artillery - hereafter separate lineage)

Withdrawn 16 November 1988 from the Army Reserve and allotted to the Regular Army; concurrently assigned to the 2d Infantry Division and activated in Korea

Redesignated 1 October 2005 as the 5th Battalion, 5th Air Defense Artillery Regiment.