The 21st Space Wing (21 WG) is an inactive wing of the United States Air Force.

It was established in 1953 as the 21st Fighter-Bomber Wing, deploying to Europe to join NATO's Allied Command Europe, before being inactivated in 1958. It reactivated in 1958 as the 21st Tactical Fighter Wing, executing air defense operations over Japan and deterring North Korea, being inactivated in 1960. It was reactivated in 1966 as the 21st Composite Wing, and in 1979 redesignated the 21st Tactical Fighter Wing, performing air defense, close air support, and a variety of other missions in Alaska, before being redesignated the 21st Wing and being inactivated in 1991.

The 21st Wing was activated as a space wing on 15 May 1992, replacing the 1st Space Wing and 3rd Space Support Wing. It was inactivated on 24 July 2020 and replaced by the Peterson-Schriever Garrison, with the 21st Operations Group being redesignated as Space Delta 2, the 73 Space Group was redesignated as Space Delta 3, and its ground–based missile warning units, combined with overhead persistent infrared units of the 460th Operations Group, was redesignated as Space Delta 4.

Operations The 21st Space Wing was the United States Space Force's ground–based missile warning and space control wing. It was also the Space Force's, and prior to its transfer the Air Force's, most geographically dispersed wing, with forces spread across 22 locations. Its ground–based radars included the Precision Acquisition Vehicle Entry Phased Array Warning System (PAVE PAWS), Ballistic Missile Early Warning System (BMEWS), and Perimeter Attack Radar Characterization System (PARCS). At the time of its inactivation on 24 July 2020, the 21st Space Wing had 4,200 space professionals and airmen under its command.

The 21st Space Wing served as the host wing for Peterson Air Force Base, providing base support for the combined United States–Canadian North American Aerospace Defense Command, United States Space Command, United States Northern Command, elements of the United States Army's Space and Missile Defense Command, the United States Air Force's 367th Recruiting Squadron, and Air Force Reserve Command's 302nd Airlift Wing.

Structure in 2020 21st Operations Group (21 OG) 6th Space Warning Squadron (6 SWS), Cape Cod Air Force Station 7th Space Warning Squadron (7 SWS), Beale Air Force Base 10th Space Warning Squadron (10 SWS), Cavalier Air Force Station 12th Space Warning Squadron (12 SWS), Thule Air Base 13th Space Warning Squadron (13 SWS), Clear Air Force Station 18th Space Control Squadron (18 SPCS), Vandenberg Air Force Base 20th Space Control Squadron (20 SPCS), Eglin Air Force Base Detachment 1, 20th Space Control Squadron, White Sands Missile Range Detachment 2, 20th Space Control Squadron, Naval Support Facility Diego Garcia Detachment 3, 20th Space Control Squadron, Air Force Maui Optical and Supercomputing observatory Operating Location – Fylingdales (OL-F), RAF Fylingdales 21st Operations Support Squadron (21 OSS) 21st Mission Support Group (21 MSG) 21st Civil Engineer Squadron (21 CES) 21st Communications Squadron (21 CS) 21st Contracting Squadron (21 CONS) 21st Force Support Squadron (21 FSS) 21st Security Forces Squadron (21 SFS) 21st Medical Group (21 MDG) 21st Healthcare Operations Squadron (21 HCOS) 21st Operational Medical Readiness Squadron (21 OMRS) 721st Operations Group (721 OG) 4th Space Control Squadron (4 SCS) 5th Space Control Squadron (5 SCS) 16th Space Control Squadron (16 SCS) 721st Operations Support Squadron (721 OSS) 821st Air Base Group (821 ABG), Thule Air Base 821st Support Squadron (821 SPTS) 821st Security Forces Squadron (821 SFS) 21st Comptroller Squadron (21 CPTS)

Shield

The 21st Space Wing shield was approved for use on 23 July 1957. The blue shield represents the sky, which is the 21st Space Wing's area of operations. The upraised sword represents the strength and readiness of the 21st Space Wing to perform its mission, in both peace and war. The lightning is symbol of the heavens beyond and the power of the 21st Space Wing. The blue, red, and yellow signify the three original fighter squadrons of the 21st Fighter-Bomber wing. The motto of the 21st Space Wing, "Strength and Preparedness" was derived from the original motto of the 21st Fighter-Bomber Wing, "Fortitudo et Preparatio."

History

21st Fighter-Bomber Wing (1953–1958)

On 1 January 1953 the 21st Fighter-Bomber Wing (21 FBW) was activated as a part of Tactical Air Command's Ninth Air Force at George Air Force Base, California. It directly commanded the 21st Fighter-Bomber Group, which oversaw the 72nd Fighter-Bomber Squadron, 416th Fighter-Bomber Squadron, and the 531st Fighter-Bomber Squadron. All fighter-bomber squadrons initially flew North American F-51 Mustang piston engine fighters, but within six months of activation upgraded to fly the North American F-86F Sabre jet fighter.

In September and October 1953, each of the 21st Fighter-Bomber Wing's squadrons rotated through a two-week arctic indoctrination program at Eielson Air Force Base, Alaska to prepare it for winter warfare operations. The 21st FBW also participated in defense diplomacy, sending six of its F-86F Sabres to participate in Project Willtour, visiting twelve different Central American, South American, and Caribbean states and performing joint training with their armed forces. In April and May 1954 the 21 FBW conducted Operation Boxkite, an exercise at North Field, South Carolina, which was designed to test the ability of a tactical wing to deploy to a forward base and sustain combat operations for thirty days.

On 22 June 1954 it was announced that the 21st Fighter-Bomber Wing would be transferred to Europe to reinforce NATO forces deterring the Soviet Union and Warsaw Pact. On 12 December 1954 it was reassigned to United States Air Forces in Europe's Twelfth Air Force and stationed at Chambley Air Base, France, however the airbase was not operational until June 1956. The fighter-bomber squadrons deployed in four tranches between November 1954 and January 1955, with flying units making stopovers at Labrador, Greenland, Iceland, and Scotland. When they arrived in France the fighter-bomber squadrons operated out of alternate airfields until Chambley AB could support flying operations.

In Europe the 21st Fighter-Bomber Wing conduced close air support exercises with United States Army Europe, as well as NATO's Northern Army Group and Central Army Group. They also took part in USAFE's gunnery meet at Wheelus Field, Libya and the "Carte Blanche" atomic warfare exercise. In 1956, the 21st Fighter-Bomber Wing also took second place at the gunnery meet at Nellis Air Force Base, Nevada and won the USAFE Award for Tactical Proficiency for January–June 1957.

Among the pilots of the 21st Fighter-Bomber wing was then First Lieutenant Michael Collins, who would later go on to become a NASA astronaut on Apollo 11, the first crewed mission to the Moon.

On 8 February 1958 the 21st Fighter-Bomber Wing was inactivated, with its assets distributed to various USAFE units.

21st Tactical Fighter Wing (1958–1960)

On 1 July 1958 the 21st Tactical Fighter Wing (21 TFW) was reactivated at Misawa Air Base, Japan. Initially directly subordinated to Pacific Air Forces' Fifth Air Force, on 10 November 1958 the 21 TFW was reassigned to Fifth Air Force's 39th Air Division. The 21st Tactical Fighter Wing was composed of the 416th Tactical Fighter Squadron, 531st Tactical Fighter Squadron, 21st Armament and Electronics Squadron, 21st Field Maintenance Squadron, and the 21st Tactical Hospital.

The 21st Tactical Fighter Wing was tasked, along with the Japan Air Self Defense Force, with the air defense of northern Japan against Soviet Air Forces aircraft. The 21 TFW was also postured to perform strategic bombing against North Korea as enumerated in the Quick Strike contingency plan, if hostilities broke out again. At the time of reactivation both the 416th Tactical Fighter Squadron and 531st Tactical Fighter Squadron flew Republic F-84G Thunderjet fighter-bomber, however, the 531 TFS began transitioning to the North American F-100D Super Sabre, with the 416 TFS performing the warfighting mission in the interim. Once the 531 TFS became fully combat capable in April 1959 it assumed the warfighting mission and the 416 TFS began transitioning to the F-100D.

Even with two units transitioning to different platforms, the 21st Tactical Fighter Wing still managed to achieve an "Excellent" rating in the Fifth Air Force's tactical evaluation and operational readiness inspection in August and September 1959, achieving the best bomb score average in the history of the Fifth Air Force. These training successes were repeated in operations, with the 21st Tactical Fighter Wing regularly intercepting Soviet Air Forces Tupolev Tu-16 Badger and Myasishchev M-4 Bison bombers encroaching on Japanese airspace, with First Lieutenant Charles Ferguson of the 531st Fighter Squadron achieving the first ever interception of a M-4 Bison bomber on 1 October 1959 and others taking valuable air-to-air photos of the Tu-16 Badger bomber for Air Force intelligence.

In addition to conducting air defense operations, the 21st Tactical Fighter Wing also deployed forces to South Korea, deterring North Korea from resuming hostilities. On 7 August 1959, two F-100D's from the 531st Tactical Fighter Squadron conducted the first transpolar flight by American jet aircraft, flying from Weathersfield, England to Eielson Air Force Base, Alaska. On 18 June 1960 the 21st Tactical Fighter Wing was inactivated again, due to the United States placing a limit on the amount of fighter wings in the Air Force, resulting in a reorganization of Fifth Air Force. The assets of the 21st Tactical Fighter Wing were transferred among the rest of the assets of the 39th Air Division.

21st Composite Wing (1966–1979), 21st Tactical Fighter Wing (1979–1991), and 21st Wing (1991)

On 8 July 1966 the 21st Composite Wing (21 CW) was reactivated at Elmendorf Air Force Base, Alaska and assigned to Alaskan Air Command, which also supported Continental Air Defense Command and the Alaskan NORAD Region. As a composite wing, it was assigned the missions of air defense, tactical airlift, and search and rescue.