Dictionary and translator for handheld
New : sensagent is now available on your handheld
A windows (pop-into) of information (full-content of Sensagent) triggered by double-clicking any word on your webpage. Give contextual explanation and translation from your sites !
With a SensagentBox, visitors to your site can access reliable information on over 5 million pages provided by Sensagent.com. Choose the design that fits your site.
Improve your site content
Add new content to your site from Sensagent by XML.
Crawl products or adds
Get XML access to reach the best products.
Index images and define metadata
Get XML access to fix the meaning of your metadata.
Please, email us to describe your idea.
Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.
Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. You can also try the grid of 16 letters. Letters must be adjacent and longer words score better. See if you can get into the grid Hall of Fame !
Change the target language to find translations.
Tips: browse the semantic fields (see From ideas to words) in two languages to learn more.
||This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (May 2011)|
|North American Aerospace Defense Command|
|Colorado Springs, Colorado, United States|
|Type||Aerospace warning and aerospace control|
|In use||1958 – present|
|Canada / United States|
|Controlled by||Joint operations of
Royal Canadian Air Force and United States Air Force and co-location with USNORTHCOM
|Garrison||Headquarters:Peterson Air Force Base
Directorate: Cheyenne Mountain Air Force Station
(west of Colorado Springs, CO)
|Commanders||General Charles H. Jacoby, Jr., USA|
|Events||May 2006 NORAD Agreement Renewal|
North American Aerospace Defense Command (NORAD, //) is a joint organization of Canada and the United States that provides aerospace warning, air sovereignty, and defense for the two countries. Headquarters NORAD is located at Peterson AFB, Colorado Springs, Colorado. NORAD command and control is exercised through the Cheyenne Mountain Operations Center, located a short distance away.
The organization was established on 12 May 1958 (an effect of the Cold War) as a joint command between the governments of Canada and the United States, as the North American Air Defense Command. Its main technical facility has been the Cheyenne Mountain Directorate, formerly Cheyenne Mountain Operations Center, of the Cheyenne Mtn. Air Force Station, Colorado; and for this reason NORAD is sometimes referred to as Cheyenne Mountain.
Similar to the Cheyenne Mountain Directorate, but on a smaller scale, the Canada East and Canada West Sector Air Operations Control Centres were located in an underground complex 600 feet below the surface at Canadian Forces Base (CFB) North Bay in Ontario, Canada. On 12 October 2006, NORAD operations at CFB North Bay have officially moved above ground into the newly-constructed Sergeant David L. Pitcher Building, and the underground complex has been "mothballed" but can be returned to operation if it should be needed again.
The Commander of NORAD and U.S. Northern Command (USNORTHCOM) maintains a headquarters and command center at Peterson Air Force Base in Colorado Springs, Colorado. The NORAD and USNORTHCOM Command Center serves as a central collection and coordination facility for a worldwide system of sensors designed to provide the commander and the leadership of Canada and the U.S. with an accurate picture of any aerospace or maritime threat. NORAD has administratively divided the North American landmass into three regions, the Alaska NORAD (ANR) Region, under Eleventh Air Force; the Canadian NORAD (CANR) Region, under 1 Canadian Air Division, and the Continental U.S. (CONR) Region, under 1 AF/CONR-AFNORTH. Both the CONR and CANR regions are divided into eastern and western sectors.
The Alaska NORAD Region (ANR) maintains 24-hour-a-day, seven-day-a-week capability to detect, validate and warn of any atmospheric threat in its area of operations from its Regional Operations Control Center (ROCC) at Elmendorf AFB, Alaska.
ANR also maintains the readiness to conduct a continuum of aerospace control missions, which include daily air sovereignty in peacetime, contingency and/or deterrence in time of tension, and active air defense against manned and unmanned air-breathing atmospheric vehicles in times of crisis.
ANR is supported by both active duty and reserve units. Active duty forces are provided by Eleventh Air Force and the Canadian Forces, and reserve forces provided by the Alaska Air National Guard. Both 11 AF and the CF provide active duty personnel to the ROCC to maintain continuous surveillance of Alaskan airspace.
1 Canadian Air Division/Canadian NORAD Region Headquarters is at CFB Winnipeg, Manitoba. It is responsible for providing surveillance and control of Canadian airspace. The Royal Canadian Air Force provides alert assets to NORAD. CANR is divided into two sectors, which are designated as the Canada East Sector and Canada West Sector. Both Sector Operations Control Centers (SOCCs) are co-located at CFB North Bay Ontario. The routine operation of the SOCCs includes reporting track data, sensor status and aircraft alert status to NORAD headquarters.
Canadian air defense forces assigned to NORAD include 441 and 416th Tactical Fighter Squadrons at CFB Cold Lake, Alberta and 425 and 433 Tactical Fighter Squadrons at CFB Bagotville, Quebec. All squadrons fly the CF-18 Hornet fighter aircraft.
In cooperation with the Royal Canadian Mounted Police and the United States drug law enforcement agencies, the Canadian NORAD Region monitors all air traffic approaching the coast of Canada. Any aircraft that has not filed a flight plan may be directed to land and be inspected by RCMP and Canada Border Services Agency.
CONR is the NORAD designation of the United States Air Force First Air Force/AFNORTH. Its headquarters is located at Tyndall AFB, Florida. 1 AF became responsible for the USAF air defense mission on 30 September 1990. AFNORTH is the United States Air Force component of United States Northern Command (NORTHCOM),
1 AF/CONR-AFNORTH comprises State Air National Guard Fighter Wings assigned an air defense mission to 1 AF/CONR-AFNORTH, made up primarily of citizen Airmen. The primary weapons systems are the F-15 Eagle and F-16 Fighting Falcon aircraft
It plans, conducts, controls, coordinates and ensures air sovereignty and provides for the unilateral defense of the United States. It is organized with a combined First Air Force command post at Tyndall AFB and two Sector Operations Control Centers (SOCC) at Rome, New York for the US East ROCC and McChord Field, Washington for the US West ROCC manned by active duty personnel to maintain continuous surveillance of CONUS airspace.
In its role as the CONUS NORAD Region, 1 AF/CONR-AFNORTH also performs counter-drug surveillance operations.
The growing perception of the threat of long-range Soviet strategic bombers armed with nuclear weapons brought the U.S. and Canada into closer cooperation for air defense. While attacks from the Pacific or Atlantic would have been detected by Airborne Early Warning aircraft, Navy ships, or offshore radar platforms, the Arctic was underprotected. In the early 1950s the U.S. and Canada agreed to construct a series of radar stations across North America to detect a Soviet attack over the Arctic. The first series of radars was the Pinetree Line, completed in 1954 and consisting of 33 stations across southern Canada. However, technical defects in the system led to more radar networks being built. In 1957, the McGill Fence was completed; it consisted of Doppler radar for the detection of low-flying craft. This system was roughly 300 miles (480 km) north of the Pinetree Line along the 55th parallel north. The third joint system was the Distant Early Warning Line (DEW Line), also completed in 1957. This was a network of 58 stations along the 69th parallel north. The systems gave around three hours' warning of a bomber attack before they could reach any major population center. Nonetheless, stopping incoming bombers was very difficult. During the three Operation Skyshield exercises of 1960 to 1962, only one quarter of friendly aircraft acting as Soviet bombers was intercepted.
The command and control of the massive system then became a significant challenge. Discussions and studies of joint systems had been ongoing since the early 1950s and culminated on 1 August 1957, with the announcement by the U.S. and Canada to establish an integrated command, the North American Air Defense Command. On 12 September, operations commenced in Colorado. A formal NORAD agreement between the two governments was signed on 12 May 1958.
On 16 June 1961, the official groundbreaking ceremony was held at the construction site of the NORAD Combat Operations Center (COC). Gen. Laurence S. Kuter, NORAD Commander, and Lt. Gen. Robert Merrill Lee, ADC Commander, simultaneously set off symbolic dynamite charges.
By the early 1960s, about 250,000 personnel were involved in the operation of NORAD. The emergence of the intercontinental ballistic missile (ICBM) and submarine-launched ballistic missile (SLBM) threat in the early 1960s was something of a blow. In response, a space surveillance and missile warning system was constructed to provide worldwide space detection, tracking and identification. The extension of NORAD's mission into space led to a name change, the North American Aerospace Defense Command in March 1981.
From 1963, the size of the U.S. Air Force was reduced, and obsolete sections of the radar system were shut down. However, there was increased effort to protect against an ICBM attack; two underground operations centers were set up, the main one inside Cheyenne Mountain and an alternate at North Bay, Ontario. By the early 1970s, the acceptance of mutual assured destruction doctrine led to a cut in the air defense budget and the repositioning of NORAD's mission to ensuring the integrity of airspace during peacetime. There followed significant reductions in the air defense system until the 1980s, when, following the 1979 Joint US-Canada Air Defense Study (JUSCADS) the need for the modernization of air defenses was accepted—the DEW Line was to be replaced with an improved Arctic radar line called the North Warning System (NWS); there was to be the deployment of Over-the-Horizon Backscatter (OTH-B) radar; the assignment of more advanced fighters to NORAD, and the greater use of Airborne Warning and Control System (AWACS) aircraft from Tinker Air Force Base in Oklahoma or Elmendorf Air Force Base in Alaska. These recommendations were accepted by the governments in 1985. The United States Space Command was formed in September 1985 as an adjunct but not a component of NORAD.
Even though all equipment in Cheyenne Mountain was put through a rigorous inspection, on at least three occasions, failure in its systems could have potentially caused nuclear war. On 9 November 1979, a technician in NORAD loaded a test tape but failed to switch the system status to "test", causing a stream of constant false warnings to spread to two "continuity of government" bunkers as well as command posts worldwide. On 3 June 1980, and again on 6 June 1980, a computer communications device failure caused warning messages to sporadically flash in U.S. Air Force command posts around the world that a nuclear attack was taking place. During these incidents, Pacific Air Forces properly had their planes (loaded with nuclear bombs) in the air; Strategic Air Command did not and took criticism because they did not follow procedure, even though the SAC command knew these were almost certainly false alarms (as did PACAF). Both command posts had recently begun receiving and processing direct reports from the various radar, satellite, and other missile attack detection systems, and those direct reports simply did not match anything about the erroneous data received from NORAD.
At the end of the Cold War NORAD reassessed its mission. To avoid cutbacks, from 1989 NORAD operations expanded to cover counter-drug operations, especially the tracking of small aircraft entering and operating within America and Canada (although commercial flights were not perceived to be threats). But the DEW line sites were still replaced, in a scaled-back fashion by the North Warning System radars between 1986 and 1995. The Cheyenne Mountain site was also upgraded. However, none of the proposed OTH-B radars are currently in operation.
After the September 11, 2001 attacks, the NORAD mission evolved to include monitoring of all aircraft flying in the interior of the United States. NORAD oversees Operation Noble Eagle using fighter aircraft Combat Air Patrols (CAP) under command of First Air Force and Airborne Warning and Control System (AWACS) E-3 Sentry aircraft under command of the 552nd Air Control Wing. At U.S. request, NATO deployed five of its NATO AWACS aircraft to the U.S. to help NORAD in the aftermath of the 11 September attacks.
On 28 July 2006, military officials announced that NORAD's day-to-day operations would be consolidated, for purposes of efficiency, in an ordinary building at Peterson Air Force Base in nearby Colorado Springs. The mountain will be kept only as a backup in "warm standby," though fully operational and staffed with support personnel should the need arise. NORAD officials stated that the same surveillance work can be continued without the security the facility provides. They emphasized that they are no longer concerned about a halt to their operations from an intercontinental nuclear attack.
NORAD commander Admiral James A. Winnefeld, Jr. said in 2010 that NORAD did not send interceptors to intercept every flight of Russian bombers near U.S. airspace because NORAD did not wish to feed Russia's propaganda about their illusion of power.
The Commander of NORAD is always a United States Defense Department Officer confirmed by the US Senate and from 2002 has simultaneously headed USNORTHCOM, while the Deputy Commander is always Canadian. During the course of NORAD's history there have been four different United States commands associated with NORAD:
|Name of Command||Abbreviations||Emblem||Association started||Association ended||Type of combatant command||Notes|
|Air Defense Command
Aerospace Defense Command
|15 November 1957||31 March 1980||specified command||Air Defense Command re-designated as Aerospace Defense Command, 15 January 1968. A new JCS Unified Command Plan designated ADC as a specified command and changed its name to the Aerospace Defense Command (ADCOM) on 1 July 1975. ADCOM inactivated on 31 March 1980 as specified command. Some components of ADCOM were reassigned to the Aerospace Defense Center, a USAF direct reporting unit assigned to Headquarters, NORAD that inactivated on 1 October 1986.|
|Air Defense, Tactical Air Command||ADTAC||1 October 1979||1 July 1987||Air Division||Resource management responsibility of ADCOM's atmospheric defense units transferred to Tactical Air Command; ADTAC established under TAC at Air Division echelon level for command of transferred ADCOM forces.|
|United States Space Command||USSPACECOM||23 September 1985||1 October 2002||functional unified command||merged with United States Strategic Command|
|United States Northern Command||USNORTHCOM||1 October 2002||continuing||regional unified command|
|Number||Name||Photo||Start of term||Association ended||Notable positions held before or after|
|1||General Earle E. Partridge, USAF||1957||1959||World War I enlisted Army combat veteran, participated in two major ground offensives on Western Front; USMA class 1924; USAAF CS Fifteenth Air Force DC Eighth Air Force World War II; Commander USAF Far East Air Forces, 1954.|
|2||General Laurence S. Kuter, USAF||1959||1962||Commander 1st Bombardment Wing, Eighth Air Force; DC, Northwest African Tactical Air Force; Commander Atlantic Division, Air Transport Command; Commander, Military Air Transport Service; Commander, Far East Air Forces|
|3||General John K. Gerhart, USAF||1962||1965|
|4||General Dean C. Strother, USAF||1965||1966||U.S. Military Representative, NATO Military Committee, 1962–1965|
|5||General Raymond J. Reeves, USAF||1966||1969|
|6||General Seth J. McKee, USAF||1969||1973|
|7||General Lucius D. Clay, Jr., USAF||1973||1975|
|8||General Daniel James, Jr., USAF||1975||1977|
|9||General James E. Hill, USAF||1977||1979|
|10||General James V. Hartinger, USAF||1980||1984|
|11||General Robert T. Herres, USAF||1984||1987||1st Vice Chairman of the Joint Chiefs of Staff (1987–1990)|
|12||General John L. Piotrowski, USAF||1987||1990||22nd Vice Chief of Staff of the Air Force (1985–1987)|
|13||General Donald J. Kutyna, USAF||1990||1992||Member of the Rogers Commission (1986–1988)|
|14||General Charles A. "Chuck" Horner, USAF||June, 1992||September, 1994||Commander, 9th Air Force, and Commander, U.S. Central Command Air Forces (1987–1992), he led U.S. and allied air operations for Operations Desert Shield and Desert Storm.|
|15||General Joseph W. Ashy, USAF||September, 1994||August, 1996|
|16||General Howell M. Estes III, USAF||August, 1996||14 August 1998|
|17||General Richard B. Myers, USAF||14 August 1998||22 February 2000||5th Vice Chairman of the Joint Chiefs of Staff (2000–2001)
15th Chairman of the Joint Chiefs of Staff (2001–2005)
|18||General Ralph E. "Ed" Eberhart, USAF||22 February 2000||5 November 2004||27th Vice Chief of Staff of the Air Force (1997–1999)|
|19||Admiral Timothy J. Keating, USN||5 November 2004||23 March 2007||Director of the Joint Staff (2003–2004)
Commander, U.S. Pacific Command (2007–2009)
|20||General Victor E. Renuart Jr., USAF||23 March 2007||19 May 2010||Senior Military Assistant to the Secretary of Defense (2006–2007)|
|21||Admiral James A. Winnefeld, Jr., USN||19 May 2010||3 August 2011||Director for Strategic Plans and Policy, The Joint Staff which he concurrently served as the Senior Member, U.S. Delegation to the U.N. Military Staff Committee (2008–2010)|
|22||General Charles H. Jacoby, Jr., USA||3 August 2011||Director for Strategic Plans and Policy, J5|
|Number||Name||Photo||Start of term||Association ended||Notable positions held before or after|
|1||Air Marshal Roy Slemon, CB, CBE, CD, RCAF||September 1957||August 1964||Chief of the Air Staff (1953–1957)|
|2||Air Marshal Clarence Rupert Dunlap, CBE, CD, RCAF||August 1964||August 1967||Deputy Chief of Staff (Operations) at Supreme Headquarters Allied Powers Europe (1958–1962), Chief of the Air Staff (1962–1964)|
|3||Air Marshal William R. MacBrien OBE, CD, RCAF||August 1967||January 1969|
|4||Lieutenant-General Frederick Ralph Sharp CMM, DFC, CD||January 1969||September 1969||Chief of the Defence Staff (1969–1972)|
|5||Lieutenant-General Edwin Reyno, CF||September 1969||August 1972||Chief of Personnel of the Canadian Forces (1966–1969)|
|6||Lieutenant-General Reginald J. Lane, DSO, DFC and Bar, CD, LoM (USA)||September 1972||October 1974||Deputy Commander of Mobile Command (1969–1972)|
|7||Lieutenant-General Richard C . Stovel, AFC, CD, LoM (USA)||October 1974||September 1976|
|8||Lieutenant-General David R. Adamson||September 1976||August 1978|
|9||Lieutenant-General Kenneth E. Lewis||1978||1980|
|10||Lieutenant-General Kenneth J. Thorneycroft||June 1980||May 1983|
|11||Lieutenant-General Donald C. MacKenzie, CF||May 1983||August 1986|
|12||Lieutenant-General Donald M. McNaughton, CF||August 1986||August 1989|
|13||Lieutenant-General Robert W. Morton, CMM, CD, BSc (RMC)||August 1989||August 1992|||
|14||Lieutenant-General Brian L. Smith||August 1992||August 1994|||
|15||Lieutenant-General J. D. O'Blenis, CF||August 1994||August 1995|
|16||Lieutenant-General L. W. F. Cuppens, CF||August 1995||April 1998|
|17||Lieutenant-General G C Macdonald, CF||April 1998||August 2001|
|18||Lieutenant-General Ken R. Pennie, CF||8 August 2001||14 July 2003||Chief of the Air Staff (2003–2005)|
|19||Lieutenant-General Rick Findley CF||14 July 2003||2 August 2007||Chief of Staff for Personnel, Training, and Reserves; Chief of Staff for Operations at 1 Canadian Air Division; Director of Combat Operations at NORAD|
|20||Lieutenant-General Charles Bouchard CMM CD CF||2 August 2007||10 July 2009||Deputy Commander for Continental NORAD Region, Deputy Commander of Allied Joint Force Command Naples|
|21||Lieutenant-General Marcel Duval CMM CF||10 July 2009||15 August 2011||Canadian Contingent Commander Middle East; Commander of 1 Wing|
|21||Lieutenant-General Thomas J. Lawson CMM CD CF||15 August 2011||Assistant Chief of the Air Staff|
NORAD comes to the public's attention every Christmas Eve when its NORAD Tracks Santa service purportedly follows Santa Claus on his mythical and nominal night-time journey around the world. This tradition began in 1955 when a local Sears store in Colorado misprinted the telephone number and children thought they were calling Santa, but actually were calling Air Defense Command (NORAD's predecessor) instead, and has been kept up-to-date in the era of the Internet, social media, and smartphones.