4th Air Defense Artillery Regiment

Constituted 1 June 1821 in the Regular Army as the 4th Regiment of Artillery and organized from new and existing units with headquarters at Pensacola, Florida. The lineages of some of the units that initially made up the 4th U.S. Artillery include campaign credit for the War of 1812. Lieutenant Stephen H. Weed commanded Battery B during the Utah War in 1860, and was killed at Gettysburg in 1863 as an infantry brigade commander. Twelve batteries of the regiment served in the American Civil War. Battery B was part of the Union Army's crack Iron Brigade in the Army of the Potomac. 1st Lieutenant Bayard Wilkeson was killed commanding Battery G at Gettysburg and posthumously received brevet promotions to lieutenant colonel. Order of battle information shows that batteries of the regiment deployed outside the U.S. in the Spanish–American War of 1898. However, no battle honors for this war are on the official lineage and honors certificate dated 30 September 1996. Regiment broken up 13 February 1901 and its elements reorganized and redesignated as separate numbered companies and batteries of the Artillery Corps. ==4th Coast Artillery Regiment==

The regiment was reconstituted on 1 July 1924 in the Regular Army as the 4th Coast Artillery (Harbor Defense) (Type C). Changes in the regimental organization were as follows: :Activated (less Batteries B, E, and F) 18 August 1924 at Fort Amador in the Panama Canal Zone, part of the Harbor Defenses of Balboa on the Pacific side of the Panama Canal. The regiment was organized by redesignating the 38th, 39th, 40th, 41st, 42nd, 43rd, 44th, 45th, 46th, 47th, and 48th companies of the Coast Artillery Corps (CAC). Batteries C, D, E, G, H, I, and K carried the lineage and designations of the corresponding batteries in the old 4th Artillery. :(Battery C inactivated 31 July 1926 at Fort Amador, Canal Zone; :Batteries B, C, and F activated 15 April 1932 at Fort Amador, Canal Zone; :Battery E activated 1 February 1938 at Fort Amador, Canal Zone; :Battery O activated 15 March 1940 in the Canal Zone; :Batteries M and N activated 14 October 1940 in the Canal Zone; :Battery L activated 27 January 1941 in the Canal Zone) • Regiment (less HHB) reconstituted 12 October 1944 in the Regular Army, concurrently consolidated with the 4th Coast Artillery Battalion (constituted 3 October 1944 in the Army of the United States) and consolidated unit designated as the 4th Coast Artillery Battalion; :Activated 1 November 1944 in the Canal Zone :Disbanded (less Batteries A and D) 1 February 1946 in the Canal Zone (Batteries A and D concurrently redesignated as Batteries A and D, Harbor Defenses of Balboa; :inactivated 15 January 1947 and 15 May 1950, respectively, in the Canal Zone) 4th Coast Artillery Battalion (less Batteries A and D) :reconstituted 28 June 1950 in the Regular Army; concurrently, battalion and Batteries A and D, Harbor Defenses of Balboa, redesignated as the 4th Coast Artillery Regiment (less Headquarters and Headquarters Battery) • Remainder of the 4th Coast Artillery Regiment reorganized 28 June 1951 as follows: • 1st Battalion consolidated with the 4th Antiaircraft Artillery Automatic Weapons Battalion (active) (see below under 3/95th CA (AA)) and consolidated unit designated as the 4th Antiaircraft Artillery Automatic Weapons Battalion :Redesignated 31 July 1950 as the 4th Antiaircraft Artillery Battalion :Inactivated 16 June 1957 in England • 2nd Battalion redesignated as the 20th Antiaircraft Artillery Battalion :Redesignated 13 March 1952 as the 20th Antiaircraft Artillery Gun Battalion :Activated 8 May 1952 at Fort Lewis, Washington :Redesignated 1 May 1953 as the 20th Antiaircraft Artillery Battalion :Inactivated 20 December 1957 at Phantom Lake, Bellevue, Washington • 3rd Battalion redesignated as the 44th Antiaircraft Artillery Battalion :Redesignated 1 April 1951 as the 44th Antiaircraft Artillery Gun Battalion and activated at Fort Stewart, Georgia :Redesignated 3 August 1953 as the 44th Antiaircraft Artillery Battalion :Redesignated 22 March 1955 as the 44th Antiaircraft Artillery Missile Battalion :Inactivated 1 September 1958 at Niagara Falls, New York == 4th Coast Artillery Group and 4th Coast Artillery Battalion ==

The 4th Coast Artillery Group was redesignated from (probably HHB) 4th Coast Artillery Regiment on 1 November 1944 in the Panama Canal Zone, where redesignated as the Harbor Defenses of Balboa on 2 January 1945. The 4th Coast Artillery Battalion was constituted 3 October 1944 and activated 1 November 1944; in August 1945 Battery C was located at Seymour Island, Galápagos. The 4th CA Battalion was inactivated (less Batteries A and D) on 1 February 1946. Batteries A and D became the corresponding batteries of the Harbor Defenses of Balboa; Battery A was inactivated on 15 January 1947 and Battery D was inactivated on 15 May 1950. ==4th Antiaircraft Artillery Group==

HHB, 4th Coast Artillery Regiment was consolidated again on 28 June 1950 with HHB, 4th Antiaircraft Artillery Group (see below), and designated as the HHB, 4th Antiaircraft Artillery Group, activated 1 September 1951 at Ladd Air Force Base, Alaska and inactivated 15 January 1958 at Ladd Air Force Base, Alaska. Under the Combat Arms Regimental System (CARS) the HHB, 4th Antiaircraft Artillery Group was consolidated and reorganized to include: :4th Antiaircraft Artillery Battalion; :20th Antiaircraft Artillery Battalion; :44th Antiaircraft Artillery Missile Battalion ==4th Air Defense Artillery==

The 4th Field Artillery Battalion (organized in 1907) consolidated, reorganized, and redesignated 1 September 1958 as the 4th Artillery, a parent regiment under the Combat Arms Regimental System. The 4th Artillery Regiment (less former 4th Field Artillery Battalion) was again reorganized and redesignated 1 September 1971 as the 4th Air Defense Artillery, a parent regiment under the Combat Arms Regimental System (former 4th Field Artillery Battalion concurrently reorganized and redesignated as the 4th Field Artillery Regiment – hereafter separate lineage). • Activated 17 April 1941 at Camp Davis, North Carolina. :HHB became HHB 138th AAA Group, thereafter separate lineage. :1/95th CAR became the 93rd AAA Gun Battalion, thereafter separate lineage. :2/95th CAR became the 752nd AAA Gun Battalion, thereafter separate lineage. :3/95th CAR became the 866th Antiaircraft Artillery Automatic Weapons Battalion: • Battalion arrived on Okinawa on 26 April 1945, where it remained into the Occupation period. • Inactivated 30 September 1946 in the Philippine Islands. • Redesignated 13 October 1948 as the 4th Antiaircraft Artillery Automatic Weapons Battalion. • Activated 15 January 1949 at Fort Bliss, Texas. ==Present day==

and the new "weapon exposed apparatus" in 2025, the 3rd Division Air Defense Battalion, 4th Air Defense Artillery was put under the command of the 82and Airborne Division, "bringing counter-UAS and Maneuver-Short Range Air Defense (M-SHORAD) capabilities" to increase "the Division's protection capability and preparation to win the first fight at night", according to an official 82nd Airborne Division Facebook post. 3rd battalion was previously under the 108th Air Defense Artillery Brigade at Fort Bragg. Of note, 3rd Battalion, 4th ADAR is the only airborne air defense artillery formation in the U.S. Army. Active battalions of the 4th ADAR: • 1st Battalion, 4th ADAR, 11th Air Defense Artillery Brigade, 32nd Army Air and Missile Defense Command • 2nd Battalion, 4th ADAR, 108th Air Defense Artillery Brigade, 32nd Army Air and Missile Defense Command • 3rd Division Air Defense Battalion (Airborne), 4th ADAR, 82nd Airborne Division • 5th Battalion, 4th ADAR, 10th Army Air and Missile Defense Command ==Honors==

Campaign participation credit War of 1812: Louisiana 1815 • 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; Consolidation I • Valorous Unit Award, streamer embroidered SAIGON (2nd Battalion, 4th Artillery, 1970) • Meritorious Unit Commendation (Army), streamer embroidered VIETNAM 1968–1969 (8th Battalion, 4th Artillery, 1970) • Army Superior Unit Award for 1987 • Valorous Unit Award 1st Battalion 4th ADA 2004 OIF ==Coat of arms==

• Shield Gules, two pallets argent, on and over a fess vert between in chief overall five rays beveled counter beveled issuant fanwise blended from base blue through green and yellow to orange and in base a Lorraine Cross or, an escallop of the last charged with a Spanish castle of the first and between two cannon palewise of the second. • Crest On a wreath of the colors, or and gules, a sheaf of twelve arrows argent behind a garb pierced by a fishhook fesswise, hook to sinister and base, or. • Motto Audacia (By Daring Deeds). Symbolism • Shield The shield is scarlet for artillery and with the two white stripes, representative of the campaign streamer of the War of 1812, depicts the age of some of the units of the regiment. The green fess refers to Mexican War service, and the two silver cannon allude to those lost without dishonor and regained with glory during that war. The escallop, the emblem of St. James, with the Spanish castle, represents the battle of Santiago, Cuba, in which elements of the regiment participated. The Lorraine Cross signifies the service of a battery of the regiment in Lorraine during World War I. The five rays, indicative of the aurora borealis, denote the service of batteries of the regiment in Alaska. • Crest The garb and fishhook commemorate participation in the battle of Gettysburg in the wheat field, the fishhook being the shape of the federal battle line. The arrows denote the Indian campaigns. ==Distinctive unit insignia==

The distinctive insignia is an adaptation of the crest and motto of the coat of arms. ==Commemorations==

A 4th U.S. Artillery Regimental Brass Band exists that depicts the regimental band during the Civil War. ==See also==