Los Angeles Air Defense Region was created in 1942.
San Francisco Air Defense Region was created in 1942.
San Francisco Air Defense Region ended in 1945.
Detroit Air Defense Sector was created in 1958.
IX Air Defense Command was created in 1944.
Highlands Army Air Defense Site was created in 1958.
Air Defense Artillery Branch - United States - was created in 1968.
* Beale Air Force Base. * Edwards Air Force Base. * Los Angeles Air Force Base. * Vandenberg Air Force Base. * Presidio of Monterey (Defense Language Institute)
NORAD (North American Aerospace Defense Command) is a joint organization of Canadaand the US that provides aerospace warning, air sovereignty, and defense for the twocountries.NORAD's headquarters facilities in Colorado are administered by the US Air Force underthe command of the 721st Mission Support Group, part of the 21st Space Wing. NORAD'sforces consist of the Alaskan NORAD Region/Eleventh Air Force, Canadian NORAD Region,and Continental NORAD Region.US Headquarters and forces are funded as part of the US Air Force under the US Department of Defense.-- Wikipedia --
IX Air Defense Command ended in 1946.
Southeast Air Defense Sector ended in 2006.
Detroit Air Defense Sector ended in 1966.
The IM 99A and IM 99B were umanned interceptors assigned to Air Defense Command and ultimately, NORAD. It was flown by remote control from the air defense region command blockhouse located around the country. If launched it was on a one way trip as it would be directed to a bomber formation and then exploded. It was ramjet powered and could approach Mach 4. A very effective air defense system against manned bomber attack.