51st Coast Artillery Regiment

The 51st Coast Artillery Regiment was a Coast Artillery regiment in the United States Army.

Lineage
Constituted in July 1917 under the designation of the 6th Provisional Regiment, Coast Artillery Corps at Fort Adams, RI from the following companies- arrived in France 11 September 1917 and Redesignated 51st Artillery Coast Artillery Corps on 5 February 1918. (In August 1918 the Railway Artillery Reserve was reconstructed and Coast Artillery Regiments reorganized to conform to standardized Field Artillery configurations) 51st coast artillery arrived New York city 3 February 1919 and moved to Camp Mills then reassigned to Fort Hamilton, then reassigned on 15 October 1919 to Camp Jackson, SC. On 22 October 1921 51st Artillery reassigned to Camp Eustis, VA. 51st Coast Artillery reassigned to Fort Monroe on 8 May 1931. 51st Coast Artillery Regiment Redesignated 51st Coast artillery (155mm Gun)(Semi-Mobile) Regiment on 8 March 1942, and 2nd Battalion authorized. HHB 1st Battalion, Battery B and Battery G reassigned to Port of Spain, Trinadad on 8 December 1943 followed by 2nd Battalion HHB, and Batteries A, C, and D.
 * Headquarters Company 2nd Co. at Fort Mott, NJ formed in June 1917
 * Supply Company 2nd Co. at Fort Mott, NJ formed in June 1917
 * Battery A 1st Co. at Fort McKinley, ME originally organized in 1808
 * Battery B 2nd Co. at Fort Greble, RI originally organized in 1901
 * Battery C 3rd Co. at Fort Strong, MA originally organized in 1847
 * Battery D 5th Co. at Fort McKinley, ME organized in April 1917
 * Battery E 1st Co. at Fort Preble, ME originally organized in 1901
 * Battery F 4th Co. at Fort Williams, ME originally organized in 1901
 * Battery G 3rd Co. at Fort Williams, ME originally organized in 1861
 * Battery H 2nd Co. at Fort Williams, ME originally organized in 1812
 * Battery I 2nd Co. at Fort Andrews, MA originally organized in 1907
 * Battery K 1st Co. Fort Banks, MA originally organized in 1813
 * Battery L 3rd Co. at Fort Andrews, MA originally organized in 1907
 * Battery M 4th Co. at Fort Andrews, MA originally organized in 1916
 * HHB as HHB
 * Battery A as Battery A 51st Artillery
 * Battery B as Battery B 51st Artillery
 * Battery C redesignated as Battery C 43rd artillery
 * Battery D redesignated as Battery D 43rd artillery
 * Battery E redesignated as Battery E 43rd artillery
 * Battery F redesignated as Battery C 57th Artillery
 * Battery G redesignated as Battery D 57th Artillery
 * Battery H redesignated as Battery F 43rd Artillery
 * Battery I redesignated as Battery C 44th Artillery
 * Battery K redesignated as Battery D 44th Artillery
 * Battery L redesignated as Battery C 51st Artillery
 * Battery M redesignated as Battery D 51st Artillery
 * Batteries E and G 53rd Artillery transferred to 51st as Batteries E and F.
 * on 31 July 1921 2nd and 3rd Battalions HHB inactivated at Camp Jackson.
 * Battery C 56th Artillery redesignated as 2nd Battalion HHD&CT 51st Artillery on 1 August 1921.
 * On 1 July 1924 51st Artillery, CAC, redesignated as 51st Coast Artillery (TD) Regiment.
 * 1st Battalion reassigned to Camp Buchanan, San Juan, PR. on 20 October 1939.
 * 2nd Battalion HHB, Battery C, and 3rd platoon Battery G (SL) activated at Borinquen Army Airfield on 16 March 1942
 * Battery D 2nd Battalion activated at Borinquen Airfield 1 May 1942.
 * On 1 June 1944 the regiment is broken up into Battalions as Follows-

On 28 February 1946 51st and 52nd Coast artillery Battalions deactivated and disbanded.
 * 1st Battalion reorganized and redesignated as 51st Coast Artillery (155mm Gun)(Semi Mobile) Battalion.
 * 2nd Battalion reorganized and redesignated as 52nd Coast Artillery (155mm Gun)(Semi Mobile) Battalion.
 * HHB 51st CA redesignated as the 145th Coast Artillery Group.
 * Battery G inactivated and disbanded. 12 June 1944.

Distinctive unit insignia
A Gold color metal and enamel device 1 1/4 inches (3.18 cm) in height overall consisting of a shield blazoned: Gules on a bend Or a caterpillar passant Vert. The field of the shield is red, the Artillery color. Service in Lorraine is shown by the bend, a distinctive feature of the Lorraine arms, “Or, a bend Gules,” reversing the tinctures. The caterpillar on the bend symbolizes the tractor. The distinctive unit insignia was approved on 16 March 1922.
 * Description
 * Symbolism
 * Background

Blazon
Gules, on a bend Or a caterpillar passant Vert. On a wreath of the colors Or and Gules, a lion’s face Gules jessant-de-lis Or. Motto "En Avant" (Forward).
 * Shield
 * Crest

Symbolism
The field of the shield is red, the Artillery color. Service in Lorraine is shown by the bend, a distinctive feature of the Lorraine arms, “Or, a bend Gules,” reversing the tinctures. The caterpillar on the bend symbolizes the tractor. The lion’s face of the crest commemorates the initial war service of Battery “A” (formerly Battery “A,” 1st Artillery) which took part in the War of 1812, and the fleur-de-lis symbolizes the organization of the Regiment for service in France.
 * Shield
 * Crest

Background
The coat of arms was approved on 5 February 1920.

Campaign streamers
unknown

Decorations
unknown