15th Coast Artillery (United States)

Constituted as the 15th Artillery (Coast Artillery Corps) (C.A.C.) and organized October 1918 at Fort Crockett, Texas, but demobilized in November 1918. This was one of a number of Coast Artillery regiments mobilized to operate heavy and railway artillery on the Western Front in World War I, but the Armistice resulted in the dissolution of the 15th.[2]

Constituted in the Regular Army 27 February 1924 as 15th Coast Artillery (Harbor Defense) (HD), and organized 1 July 1924 at Fort Kamehameha from the following Companies of the Coast Artillery Corps (CAC): 185th, 125th, 91st, 143rd, 184th, 86th, and 95th.[3]

• only regimental Headquarters and Headquarters Battery (HHB) and Batteries A, B, and C activated.[3]
• 2nd Battalion HHB, and Batteries G, H, and I, constituted 4 February 1932 but not activated.[3]
• 1st and 2nd Battalion HHBs, and Batteries D, E, and G activated 1 August 1942.[3]
• Battery F activated 22 May 1943 at Salt Lake, Hawaii,[4][5] Battery H activated same date at Fort Kamehameha.[3]
• Regiment assigned to Central Pacific Base Command 31 January 1944.
• On 29 May 1944 15th CA assumed responsibility for Oahu's south shore defenses; 16th CA elements there transferred to 15th CA.[3]

Regiment disbanded on 15 August 1944 and broken up as follows:[1][3]

• 15th Coast Artillery Group[6]
• 53rd Coast Artillery Battalion[7]
• 54th Coast Artillery Battalion[7]

15th CA Group and 53rd CA Battalion inactivated 10 April 1945;[6][7] 54th CA Battalion inactivated 10 April 1946.[7]

In 1950 the 15th Coast Artillery Group was reconstituted and consolidated as the 15th Antiaircraft Artillery Group, with lineage inherited from the 15th Coast Artillery Regiment.

• Description

A Gold color metal and enamel device 1 1/32 inches (2.62 cm) in height overall consisting of a shield blazoned: Gules, a chevron paly of eight Argent, of the field (Gules), Azure and repeated, the ordinary fimbriated Or. Attached below and to the sides of the shield a Gold scroll inscribed “LITTORE SISTIMUS” in Blue letters.

• Symbolism

The shield is red for the Artillery and the chevron is in the colors of the old royal Hawaiian flag, which also appeared in the arms of the Coast Defenses of Pearl Harbor. The motto translates to “We Take Our Stand On The Shore.”

• Background

The distinctive unit insignia was originally approved for the 15th Coast Artillery Regiment on 17 April 1925. It was redesignated for the 15th Artillery Group on 2 June 1966.

World War II

• Central Pacific[1]

unknown

• Distinctive unit insignia (U.S. Army)
• Seacoast defense in the United States
• United States Army Coast Artillery Corps
• Harbor Defense Command

• Berhow, Mark A., Ed. (2015). American Seacoast Defenses, A Reference Guide, Third Edition. McLean, Virginia: CDSG Press. ISBN 978-0-9748167-3-9.
• Gaines, William C., Coast Artillery Organizational History, 1917-1950, Coast Defense Journal, vol. 23, issue 2
• Rinaldi, Richard A. (2004). The U. S. Army in World War I: Orders of Battle. General Data LLC. ISBN 0-9720296-4-8.
• Stanton, Shelby L. (1991). World War II Order of Battle. Galahad Books. ISBN 0-88365-775-9.
• Williford, Glen; McGovern, Terrance (2003). Defenses of Pearl Harbor and Oahu 1907-50. Osprey Publishing. ISBN 978-1-8417657-2-3.
• Coast Artillery Journal, August 1923, pp. 132-135
• Coast Artillery Journal, June 1927, pp. 543-544

 This article incorporates public domain material from the United States Army Institute of Heraldry document: "15th Coast Artillery". (dead link 18 September 2017)

• Greg Hagg; Bolling Smith; Mark Berhow. "Insignia of the Coast Artillery Corps" (PDF). The Coast Defense Study Group, Inc. Retrieved 18 May 2018.
• Official US Army lineage website for current units
• Forts in Hawaii at the Coast Defense Study Group website
• Forts in Hawaii at FortWiki.com
• American Forts Network, lists forts in the US, former US territories, Canada, and Central America