Buckley Air Force Base ( IATA : BFK , ICAO : KBKF , FAA LID : BKF ) is a United States Air Force base in Aurora, Colorado , that was established by the U.S. Army in 1942. The base was named in honor of World War I Army pilot First Lieutenant John Harold Buckley.
Buckley Air Force Base is an Air Force Space Command base that serves more than 92,000 active duty, National Guard, Reserve and retired personnel throughout the Front Range community. The host unit is the 460th Space Wing . Buckley AFB has air operations, space-based missile warning capabilities, space surveillance operations, space communications operations and support functions. 
World War II
During the early years of World War II the city of Denver purchased a 5,740-acre (23 km 2 ) parcel of land several miles east of the city and donated it to the Department of the Army. The site was named Buckley Field after 1st Lt. John Harold Buckley, a Longmont, Colorado , native, who was killed while on a combat strafing mission behind enemy lines in France on September 17, 1918.
Under the command of the 336th AAF Base Unit ( Army Air Forces Technical Training Command ), construction on the base began in early 1942, and that resulted in the construction of over 700 buildings. On 1 July 1942, the U.S. Army Air Corps Technical Training School opened there. It consisted of bombardier and armorer training for air crewmen on the B-17 Flying Fortress and B-24 Liberator bomber, also an Arctic Training School for aircrew headed for the Alaskan Wing of the Air Transport Command . Technical training at the base was under the jurisdiction of the Western Technical Training Command . During World War II, Buckley Field also trained over 50,000 airmen in initial basic training.
The Cold War years
After World War II, Buckley Field's military role quickly diminished, and in 1946 it became an auxiliary field of the nearby Lowry Air Force Base . Lowry in turn transferred control of the base to the Colorado Air National Guard that same year. Air National Guard ownership lasted less than one year, and then in 1947 the Department of the Navy took charge of the base and renamed it Naval Air Station Denver . 
The renamed base was the location of Naval Air Reserve aviation squadrons, as well as for veterans and their families waiting to return to civilian life. Thousands of veterans returned to civilian life here over the next four years, while Naval Air Reservists concurrently conducted operational training. The Navy remained here for 12 years before decommissioning its base on June 30, 1959, and transferring it back to the U.S. Air Force (which had not existed before 1947), which renamed the facility Buckley Air Force Base. However, the Naval Reserve remained at Buckley as tenant activity known as Naval Air Reserve Center Denver, the predecessor of the present day Navy Operational Support Center Denver.
Buckley Field once again became the Buckley Air National Guard Base on April 18, 1960. At the same time, it became the first stand-alone Air National Guard base in the country. The Colorado Air National Guard remained in control of Buckley Field for the next 40 years, operating it as a fighter base.
During the Cold War era, the Colorado Air National Guard mobilized the Buckley-based 120th Tactical Fighter Squadron for events as the Cuban Missile Crisis , the USS Pueblo crisis , and the Vietnam War .
During the 1950s and 1960s, the growth of Aurora, Denver’s eastern neighbor, edged toward Buckley Field. The land of the air base was annexed to Aurora in 1965 and 1966; however, the installation is US Government property under Federal jurisdiction.
From about 1970 through 1989, another tenant unit at Buckley Field was the 154th Tactical Air Support Group, an Air National Guard (ANG) unit trained to provide close air support for United States Army ground operations. The 154th Group had its own truck-mounted tactical radar units and radar-control vans, but no aircraft were assigned.
Although the Cold War ended in the early 1990s, the 120th Tactical Fighter Wing did not see any decrease in its responsibilities. It deployed from Buckley Field numerous times during the decade of the 1990s to take part in various military operations such as Operation Desert Storm , Operation Northern Watch , and Operation Iraqi Freedom .
A year later, control of Buckley AFB was transferred to the newly reactivated 460th Air Base Wing.
Since the return of Buckley Field to the Air Force in 2000, the air base has seen an unprecedented amount of new construction and modernization. New enlisted airmen's dormitories, the commissary, the base exchange, and the fitness center have all been completed, augmented by the completion of family housing units - the first ones ever constructed at Buckley Field.
In late 2016, the Air Force approved an upgraded version of the Space-Based Infrared System (SBIRS) ground system from Lockheed Martin . The newly-improved system will strengthen the constellation’s efforts in delivering critical infrared data for defense purposes. The Block 10 system includes the implementation of speedier collection times in detecting potential threats and will be located at the SBIRS Mission Control Station at Buckley AFB. In Homeland Preparedness News , a Lockheed Martin spokesman said, "With the Block 10 upgrade, the mission-critical data supplied by SBIRS is now being managed from a single ground control station, which is not only cost-efficient, but also more effective in providing our Air Force operators with the ability to characterize threats and quickly provide that information to military commanders deployed around the globe." 
- 460th Operations Group
- Provides missile warning, missile defense, technical intelligence, satellite command and control, battlespace characterization and robust communications. The group's team of space professionals operates the Defense Support Program satellite, which provides continuous global surveillance , tracking and targeting.  The group includes the 2d , 8th , and 11th Space Warning Squadrons , the 460th Space Communications Squadron, and the 460th Operations Support Squadron.
- 460th Mission Support Group
- Provides trained personnel to support the Air Expeditionary Forces and Homeland Defense. The group is responsible for force protection, quality of life, human resources, contracting, logistics, base infrastructure and environmental stewardship support to the 460th SW, its customers and the base operational missions. 
- 460th Medical Group
- Supports military readiness to the Air Expeditionary Forces and Homeland Defense missions by ensuring base personnel are medically qualified for deployments and providing health care, life skills support, family advocacy, aerospace medicine, public health, bioenvironmental engineering, optometry, ancillary services health and wellness services and dental care. 
88 tenant units call Buckley AFB "Home".
- Major tenant units include: 
- The 140th Wing , Colorado Air National Guard . The 140th Wing includes the 120th Fighter Squadron and its F-16C fighters, the Air Mobility Command 's 200th Airlift Squadron , operating the Learjet C-21 ; the Air Force Space Command 's 137th Space Warning Squadron ; and the Pacific Air Forces 's 240th Civil Engineering Flight.
- The Colorado Army National Guard operates the Army Aviation Support Facility at Buckley AFB and is responsible for supplying personnel and equipment for CH-47 Chinook, UH-1 Huey, and UH-60 Blackhawk helicopters. 
- The Aerospace Data Facility-Colorado ( National Reconnaissance Office ), 566th Intelligence Squadron ,
- The U.S. Army 's 743rd Military Intelligence Battalion
- The Navy Information Operations Command, Colorado
- The Air Reserve Personnel Center (ARPC), was physically located off Buckley at the former Lowry AFB in Denver until it relocated into a new facility on base on 1 Aug 2011. ARPC manages personnel records for the Air National Guard and Air Force Reserve Command and maintains the virtual Personnel Center - Guard and Reserve, a Web-based portal for Air Guardsmen and Air Force Reservists. With over 490 military and civilian personnel, ARPC also performs other personnel services and transactions in support Air Reserve Component forces in the continental United States, as well as Alaska, Hawaii and Puerto Rico. 
Other tenants include Air Force Office of Special Investigation, Det. 801, Marine Air Control Squadron 23, Navy Marine Corps Reserve Center, U.S. Army Corps of Engineers, Civil Air Patrol, Army Air Force Exchange Service, Air Force Audit Agency, Air Force Operational Test and Evaluation Center, Air Force Technical Applications Center Det. 45, Defense Commissary Agency, Defense Contract Manager Agency, Battery A, 1st Battalion, 14th Marines. 
Off-base tenant units supported by Buckley Air Force Base include The 4th Manpower Requirements Squadron, Air Force Accounting and Finance Office, Defense Information Service Agency, Air Force Institute of Technology, Air Force Office of Special Investigation, Det. 110, Air Reserve Personnel Center, Defense Automated Printing Service, Defense Security Cooperation Agency (FMS), SBIRS Combine Task Force, HQ Air Force Weather Agency , ROTC Det. 105, Department of Defense Inspector General, Military Entrance Processing Station, Naval Reserve Recruiting Area West 7, Rocky Mountain Arsenal and the U.S. Army Recruiting Battalion. 
In addition, a $141 million facility for the National Security Agency is planned on the base, which will provide space for 850 people whose offices are now in temporary buildings. Buckley is home to a large contingent of secretive agencies, including the NRO ADF-Colorado noted above, the National Security Agency , Army, Navy, Air Force and Marine intelligence and information units; and Marine and Coast Guard cryptologic units.