18th Coast Artillery (United States)

January 2025 January 2025 18th Coast Artillery Regiment Coast artillery Army 1940 - 1944 Harbor defense *Harbor Defenses of San Francisco Harbor Defenses of the Columbia Regiment *Fort Funston (California) Fort Stevens (Oregon) "Tam Marte Quam Minerva" (As much by the pen as the sword)Stanton, p. 457 Oozlefinch The 18th Coast Artillery Regiment was a Coast Artillery regiment in the United States Army. It was the Regular Army component of the Harbor Defenses of the Columbia, replacing the 3rd Coast Artillery there. Other elements of the regiment were also part of the Harbor Defenses of San Francisco. The regiment was active from 1940 until withdrawn in April 1944 and inactivated the following month as part of an Army-wide reorganization. Lineage 1 Constituted as the 18th Artillery (Coast Artillery Corps) (C.A.C.) and organized October 1918 at Fort Winfield Scott, California, but demobilized in December 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 18th.Rinaldi, p. 159Gaines regular army, pp. 12-13 Lineage 2 Constituted in the Regular Army 19 January 1940 as 18th Coast Artillery (Harbor Defense) (HD), and organized 1 February 1940 at Fort Stevens. Regimental HHB, 1st Battalion HHB, and Batteries A and B were organized 1 February 1940 by redesignating HHD, Btrys E and F, and Panama Detachment, 3rd Coast Artillery (HD) Regiment, Fort Stevens. The 18th CA (HD) relieved the 3rd CA (HD) in the Harbor Defenses of the Columbia. The 249th Coast Artillery was the Oregon National Guard component of those defenses.Gaines National Guard, 249th Coast Artillery Battery C activated at Fort Stevens 3 January 1941. HHB 2nd Battalion and Batteries D, E, & F constituted 1 February 1940 and activated at Fort Winfield Scott in HD San Francisco 15 January 1941. Battery G (searchlight) activated at Fort Stevens 10 June 1941. Battery F moved to Fort Miley 21 November 1941. Regimental HHB and 2nd Battalion (less Battery F) moved to Fort Funston in HD San Francisco 7 December 1941.The reference is inconsistent, stating "HHB 18th CA & 1st Bn" moved to Fort Funston, then later stating 1st Battalion remained in HD of the Columbia until 27 April 1944. On 21 June 1942 the bombardment of Fort Stevens by Japanese submarine I-25 occurred with relatively minor damage.Webber, pp. 58-61 Various exchanges of personnel occurred in HD of the Columbia between the 18th CA (HD) and the 249th Coast Artillery (HD) in November 1942, August 1943, and January 1944. Battery G moved to Fort Canby around 1 January 1943. Regimental HHB ordered to XXII Corps at Camp Breckinridge, Kentucky 14 April 1944, assets absorbed by HD of the Columbia and HD San Francisco by 27 April 1944. HHB inactivated 5 May 1944. Campaign streamers World War II Pacific Theater without inscription See also Distinctive unit insignia (U.S. Army) Seacoast defense in the United States United States Army Coast Artillery Corps Harbor Defense Command References Berhow Mark A. American Seacoast Defenses, A Reference Guide Third McLean, Virginia CDSG Press 2015 978-0-9748167-3-9 Gaines, William C., Coast Artillery Organizational History, 1917-1950, Coast Defense Journal, vol. 23, issue 2 Gaines, William C., Historical Sketches Coast Artillery Regiments 1917-1950, National Guard Army Regiments 197-265 Rinaldi Richard A. The U. S. Army in World War I: Orders of Battle General Data LLC 2004 0-9720296-4-8 Stanton Shelby L. World War II Order of Battle Galahad Books 1991 0-88365-775-9 Webber Bert Retaliation Oregon State University Press 1975 Corvallis, OR 0-87071-076-1 External links http://cdsg.org/wp-content/uploads/pdfs/FORTS/CACunits/CACinsignia.pdf Insignia of the Coast Artillery Corps Greg Hagg Bolling Smith Mark Berhow The Coast Defense Study Group, Inc. 18 May 2018 Official US Army lineage website for current units https://web.archive.org/web/20081208105426/http://www.history.army.mil/html/forcestruc/lh.html 2008-12-08 Forts of the Pacific coast at the Coast Defense Study Group website FortWiki, lists most CONUS and Canadian forts American Forts Network, lists forts in the US, former US territories, Canada, and Central America 018 Category:Military units and formations in California Category:Military units and formations in Oregon Category:Military units and formations in Washington (state) Category:Military units and formations established in 1918 Category:Military units and formations disestablished in 1918 Category:Military units and formations established in 1940 Category:Military units and formations disestablished in 1944