The soldiers used the procedures of an actual combat scenario at the Pacific Spaceport on Kodiak Island, Alaska, and were not aware of the IRBM's launch time.

[2] On 19 October 2017, Battery D-2 ADAR THAAD (Delta Battery, 2nd Air Defense Artillery Regiment) reflagged from the 11th ADA Brigade to the 35th ADA Brigade prior to the permanent change of station from Fort Bliss to South Korea.

[3] Constituted 1 June 1821 in the Regular Army as the 2nd Regiment of Artillery and organized from existing units with headquarters at Baltimore, Maryland.

At the time, the battery was commanded by 2LT Peter Conover Hains, who later became the last veteran of the Civil War to serve on active duty, being recalled from retirement with the outbreak of the First World War to serve as commander of the Eastern District of the Corps of Engineers from 1917-1918.

[10] Regiment was broken up on 13 February 1901, and its elements reorganized and redesignated as separate numbered companies and batteries of the Artillery Corps.

[1] Reconstituted 1 July 1924 in the Regular Army as the 2nd Coast Artillery at Fort Sherman in the Harbor Defenses of Cristobal on the Caribbean side of the Panama Canal.

1st, 2nd, and 3rd Battalions and Batteries C, E, and H inactivated 15 April 1932 in the Canal Zone and transferred, less personnel and equipment, to Fort Monroe, Virginia.

[11][13] Regimental headquarters and Batteries C, E, and H activated 30 April 1932 at Fort Monroe, Virginia in the Harbor Defenses of Chesapeake Bay with personnel from inactivated 12th Coast Artillery.

Remainder of 1st and 2nd Battalions activated 1 August 1940 at Fort Monroe as a Type B harbor defense regiment.

Landed at Utah Beach, France on 12 July 1944; crossed into Belgium 24 September 1944 and into Holland 29 October 1944.

[1] Constituted 25 February 1943 in the Army of the United States as the 136th Antiaircraft Artillery Gun Battalion.

[1] Constituted 25 February 1943 in the Army of the United States as the 795th Coast Artillery Battalion (Antiaircraft) (Automatic Weapons).

[1] Redesignated 25 June 1948 as the 42nd Antiaircraft Artillery Automatic Weapons Battalion and assigned to the 9th Infantry Division.

[1] Constituted 31 January 1942 in the Army of the United States as the 434th Coast Artillery Battalion (Antiaircraft) (Automatic Weapons).

The fifteen stripes, representative of the United States national flag of 1814, allude to the battle of Fort McHenry in which a company of the regiment participated.

[23] This article incorporates public domain material from 2d Air Defense Artillery Regiment Lineage and Honors.