Los Angeles Air Force Base, Fort MacArthur Annex (Los Angeles, California)

 military, NRHP - National Register of Historic Places, historic landmark, United States Air Force

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An active military facility, it is the housing and administration area for military personnel stationed at nearby Los Angeles Air Force Base in El Segundo. It was primarily used by the Army as the Fort MacArthur Middle Reservation from 1914-1979, until it was transferred to the Air Force in 1982.

During the Nike years, the site contained the headquarters for the Los Angeles Defense Area: the 47th ADA BDE (1952-1969), the 108th AD Group (1956-58) and later the 19th ADA Group (1969-1974). It was also the site of the HHB of the 3rd battalion of the 57th ADA and after 1968, the HHB of the 1st battalion of the 56th ADA. It was the location of the area's Missile Master (AN/FSG-1), and Missile Mentor (AN/TSQ-51) command centers and was connected to the NORAD communication net which had an AN/FPS-27 (FAA) radar unit and two AN/FPS-6 radar units. The Nike Headquarters Building 550 was demolished.

www.militarymuseum.org/HDLA.html
www.ftmac.org/lanike3.htm