251st Air Defense Artillery Regiment (United States)
| 251st Coast Artillery Regiment | |
|---|---|
Coat of arms
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| Active | 1924 - 44 |
| Country |
 United States
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| Allegiance | California |
| Branch | California Army National Guard |
| Type | Air defense |
| Motto(s) | "We Aim to Hit" |
| Engagements | |
| Insignia | |
| Distinctive Unit Insignia |  |
The 251st Coast Artillery was a coast artillery regiment in the California National Guard.
Constituted 1 November 1924 in the California National Guard as the 251st Coast Artillery (HD)(Coast Artillery Corps) as follows-
Redesignated 251st Coast Artillery (AA) 1 January 1930.
Arrival of the regiment in Fiji was reported on 1 June 1942, 'more than doubling the anti-aircraft defences of Fiji.'
Regiment broken up 1 March 1944 as follows-
The individual battalions were also broken up and redesignated.
746th Antiaircraft Artillery Gun Battalion inactivated 15 January 1946 at Camp Stoneman, California.
Later the regiment became an air defense regiment, and was equipped with the Nike-Hercules missile. Elements which were to become part of the 251st Air Defense Artillery were under control of the Regular Army's 47th Artillery Brigade (Air Defense), part of Army Air Defense Command. The brigade's command post was at the Fort MacArthur Direction Center. In May 1959, the 720th ADA Battalion was redesigned as the 4th Missile Battalion (Nike-Hercules) 251st Artillery, California Army National Guard.
The lineage of the regiments headquarters company continues on in the form of the headquarters company of the 79th Infantry Brigade Combat Team.
A Gold color metal and enamel device 1 1⁄8 inches (2.9 cm) in height overall consisting of a shield blazoned: Or, six pallets couped Gules, a ship of Cabrillo’s time Argent; on a canton Azure a fleur-de-lis encircled by a garland of laurel of the first. Attached below and to the sides of the shield a Red scroll inscribed “WE AIM TO HIT” in Gold letters.
The shield is red for Artillery. The six pallets couped produce a diminished bordure effect on the shield and represent the six batteries comprising the Regiment at the time of its organization. The ship is a representation of the ship of Don Juan Rodrigues Cabrillo, a Portuguese, who discovered San Diego Harbor. The charges on the canton, the fleur-de-lis encircled by a garland of laurel, are taken from the coat of arms of the 250th Coast Artillery, as Batter B of the 251st Coast Artillery, California National Guard, is a descendant of Batter F of the 250th Coast Artillery, California National Guard which served during World War I as B Battery of the 65th Coast Artillery (US).
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