2nd Air Defense Artillery Regiment ( United States ) The 2nd Air Defense Artillery Regiment is an air defense artillery regiment of the United States Army first formed in 1821 . Lineage . Constituted 1 June 1821 in the Regular Army as the 2nd Regiment of Artillery and organized from existing units with Headquarters at Baltimore , Maryland Regiment broken up 13 February 1901 and its elements reorganized and redesignated as separate numbered companies and batteries of Artillery Corps Reconstituted 1 July 1924 in the Regular Army as the 2nd Coast Artillery ( Batteries E , G , and H concurrently reorganized and redesignated from existing units in the Canal Zone ) Regimental headquarters and Batteries C , E , and H activated 30 April 1932 at Fort Monroe , Virginia Regiment broken up 1 October 1944 and its elements reorganized and redesignated as follows : Former elements of the 2d Coast Artillery reconstituted and / or consolidated 28 June 1950 to form the following units : Headquarters and Headquarters Battery , 2d Artillery Group ; 2d , 12th , and 42d Antiaircraft Artillery Battalions ; and the 2d Field Artillery Battalion ( organized in 1907 ) consolidated , reorganized , and redesignated 15 December 1961 as the 2d Artillery , a parent regiment under the Combat Arms Regimental System 2d Artillery ( less former 2d Field Artillery Battalion ) reorganized and redesignated 1 September 1971 as the 2d Air Defense Artillery , a parent regiment under the Combat Arms Regimental System ( former 2d Field Artillery Battalion concurrently reorganized and redesignated as the 2d Field Artillery – hereafter separate lineage ) Withdrawn 16 January 1989 from the Combat Arms Regimental System and reorganized under the United States Army Regimental System Annex 1 . Constituted 5 August 1942 in the Army of the United States as Headquarters and Headquarters Battery , 2d Antiaircraft Artillery Automatic Weapons Group Activated 17 August 1942 at Fort Bliss , Texas Redesignated 26 May 1943 as Headquarters and Headquarters Battery , 2d Antiaircraft Artillery Group Inactivated 26 October 1945 at Camp Kilmer , New Jersey Annex 2 . Constituted 25 February 1943 in the Army of the United States as the 136th Antiaircraft Artillery Gun Battalion Activated 15 June 1943 at Camp Edwards , Massachusetts Inactivated 12 December 1945 at Camp Myles Standish , Massachusetts Annex 3 . Constituted 25 February 1943 in the Army of the United States as the 795th Coast Artillery Battalion Activated 20 April 1943 at Camp Stewart , Georgia Redesignated 30 April 1943 as the 795th Antiaircraft Artillery Automatic Weapons Battalion Inactivated 31 December 1945 in Germany Redesignated 25 June 1948 as the 42d Antiaircraft Artillery Automatic Weapons Battalion and assigned to the 9th Infantry Division Activated 12 July 1948 at Fort Dix , New Jersey Annex 4 . Constituted 31 January 1942 in the Army of the United States as the 434th Coast Artillery Battalion Activated 1 March 1942 at Camp Hulen , Texas Redesignated 5 December 1943 as the 434th Antiaircraft Artillery Automatic Weapons Battalion Disbanded 14 January 1945 in Italy Reconstituted 20 March 1951 in the Regular Army Campaign participation credit . War of 1812 : Canada Indian Wars : Seminoles Mexican War : Palo Alto ; Resaca de la Palma ; Monterey ; Vera Cruz ; Cerro Gordo ; Contreras ; Churubusco ; Molino del Rey ; Chapultepec ; Tamaulipas 1846 ; Puebla 1847 Civil War : Bull Run ; Peninsula ; Antietam ; Fredericksburg ; Chancellorsville ; Gettysburg ; Wilderness ; Spotsylvania ; Cold Harbor ; Petersburg ; Shenandoah ; Appomattox ; Florida 1861 ; Florida 1862 ; Virginia 1861 ; Virginia 1862 ; Virginia 1863 ; Virginia 1865 ; Maryland 1863 World War II : Tunisia ; Naples - Foggia ; Anzio ; Rome - Arno ; Normandy ; Northern France ; North Apennines ; Rhineland ; Ardennes - Alsace ; Central Europe ; England 1944 Vietnam : 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 Southwest Asia : Liberation and Defense of Kuwait