The unit was initially constituted 25 January 1907 in the Regular Army as the 133rd Company, Coast Artillery Corps. Organized 1 August 1907 at Fort Terry, New York. Redesignated 3 July 1916 as the 3d Company, Fort Terry. Redesignated 31 August 1917 as the 13th Company, Coast Defenses of Long Island Sound. Redesignated in December 1917 as Battery A, 56th Artillery. Demobilized 31 July 1921 at Camp Jackson, South Carolina. Reconstituted 1 June 1922 in the Regular Army; concurrently consolidated with the 4th Company, Coast Defenses of Long Island Sound ; redesignated 31 August 1917 as the unit was redesignated as the 133rd Company, Coast Artillery Corps.
Headquarters and Headquarters Battery, 11th Coast Artillery, reconstituted 28 June 1950 in the Regular Army; concurrently consolidated with Headquarters and Headquarters Battery, 11th Antiaircraft Artillery Group, and Antiaircraft Artillery Group. Inactivated 27 April 1953 at Fort Tilden, New York. Activated 15 January 1955 at Camp Stewart, Georgia. Redesignated 20 March 1958 as Headquarters and Headquarters Battery, 11th Artillery Group. Inactivated 26 August 1960 at Rehoboth Defense Area, Massachusetts.
Activated 1 May 1967 at Fort Carson, Colorado. Headquarters and Headquarters Battery 11th Air Defense Artillery was inactivated 26 May 1967 at Fort Carson, Colorado. Activated 1 September 1971 at Fort Bliss, Texas. Redesignated 15 March 1972 as Headquarters and Headquarters Battery, 11th Air Defense Artillery Group. Reorganized and redesignated 16 December 1980 as Headquarters and Headquarters Battery, 11th Air Defense Artillery Brigade.
Headquarters and Headquarters Battery, 11th Antiaircraft Artillery Group was constituted 19 December 1942 in the Army of the United States as Headquarters and Headquarters Battery, 11th Antiaircraft Automatic Weapons Group. Activated 20 January 1943 at Camp Davis, North Carolina. Redesignated 26 May 1943 as Headquarters and Headquarters Battery, 11th Antiaircraft Artillery Group. Inactivated 6 October 1945 in Germany. Allotted 9 December 1948 to the Regular Army. Activated 15 January 1949 at Fort Bliss, Texas.
Recent history
The brigade served in the Persian Gulf War, during which the brigade recorded the first intercept of a ballistic missile in combat. Prior to its deployment it consisted of: 1st Battalion, 2nd ADA 2nd Battalion, 7th ADA 3rd Battalion, 43rd ADA 2nd Battalion, 1st ADA Task Force with 2-1 ADA and 2-43 ADA The 1st Battalion, 2nd ADA was left behind at Fort Stewart when the brigade deployed. Battery D, 1st Battalion, 7th ADA was attached from 94th ADA Brigade, 32nd AADCOM in Europe, and 2nd Battalion, 43rd ADA was attached from 10th ADA Brigade, 32nd AADCOM. Thomas D. Dinackus notes that every battalion that was part of the brigade received the Valorous Unit Award, despite three of the battalions not having fired a single shot in anger.
