The 12th Space Warning Squadron is a

United States Space Force The United States Space Force (USSF) is the space force branch of the United States Department of Defense. It is one of the six United States Armed Forces, armed forces of the United States and one of the eight uniformed services of the Unite ...

ground-based radar used for

missile A missile is an airborne ranged weapon capable of self-propelled flight aided usually by a propellant, jet engine or rocket motor. Historically, 'missile' referred to any projectile that is thrown, shot or propelled towards a target; this ...

warning, missile defense, and space situation awareness, stationed at

Pituffik Space Base Pituffik Space Base ( ; ; ), formerly Thule Air Base (), is a United States Space Force base located on the northwest coast of Greenland in the Kingdom of Denmark under a defense agreement between Denmark and the United States. 150 United Stat ...

, Greenland.

Overview

The primary mission of the 12th SWS is to provide critical, real-time missile warning, defense, and space surveillance to the President of the United States, Secretary of Defense, the Joint Chiefs of Staff, NORAD, and unified commands by operating a phased-array radar—which continuously provides warning of

submarine-launched ballistic missile A submarine-launched ballistic missile (SLBM) is a ballistic missile capable of being launched from Ballistic missile submarine, submarines. Modern variants usually deliver multiple independently targetable reentry vehicles (MIRVs), each of which ...

(SLBM) and

intercontinental ballistic missile An intercontinental ballistic missile (ICBM) is a ballistic missile with a range (aeronautics), range greater than , primarily designed for nuclear weapons delivery (delivering one or more Thermonuclear weapon, thermonuclear warheads). Conven ...

attacks against North America—and detect, track, and identify earth-orbiting objects in support of USSTRATCOM's space control mission, thus "knitting a blanket of freedom". The 12th Space Warning Squadron is a unit of the

Space Delta 4 Mission Delta 4 (MD4) is a United States Space Force unit responsible for providing strategic and theater missile warning and tracking to the United States and its international partners. It operates three constellations of Overhead Persistent I ...

which is under

Air Force Space Command An atmosphere () is a layer of gases that envelop an astronomical object, held in place by the gravity of the object. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. A stellar atmosphere ...

. To accomplish its mission, the squadron operates the solid-state phased-array radar located at the

Ballistic Missile Early Warning System The RCA 474L Ballistic Missile Early Warning System (BMEWS, 474L System, Project 474L) was a United States Air Force Cold War early warning radar, computer, and communications system, for ballistic missile detection. The network of twelve rada ...

(BMEWS), Site I. The BMEWS site is located approximately 11 miles northwest of Pituffik SB . It provides early warning detection of intercontinental ballistic missile (ICBM) launches from the Russian land mass and submarine-launched ballistic missile (SLBM) launches from the North Atlantic and Arctic Oceans against North America. Additionally, BMEWS keeps track of polar orbiting satellites. The operational crews report through the Missile Warning Center to the NORAD/USNORTHCOM Center. The Operation Support Flight (DOO) provides direct operational support to the missile warning crews. The flight's Operations Training Section (DOT) provides all crew force initial, recurring, and supplemental training. Other flight responsibilities include hardware, software and maintenance support (MA), operational test and evaluation (DOV), and crew force management (DOU).

History

The 12th SWS was formed in January 1967 as a successor organization to the

Air Defense Command Aerospace Defense Command was a major command (military formation), command of the United States Air Force, responsible for air defense of the continental United States. It was activated in 1968 and disbanded in 1980. Its predecessor, Air De ...

931st Aircraft Control and Warning Squadron, which was inactivated at the end of 1965. The 931st AC&WS operated a series of Ground-Control Intercept (GCI) radar sites in Greenland to detect intrusion of unknown aircraft. The squadron relayed information to the 64th NORAD Region

Semi Automatic Ground Environment The Semi-Automatic Ground Environment (SAGE) was a system of mainframe computer, large computers and associated computer network, networking equipment that coordinated data from many radar sites and processed it to produce a single unified image ...

(SAGE) system DC-31 Direction Center, and interceptor squadrons stationed at Thule Air Base. With the development of ICBM and SLBM technologies, the mission to monitor aircraft coming over the horizon from the Soviet Union was transferred to other units, and the 931st AC&WS at Thule AB was inactivated.

Lineage

* Constituted as the 12th Missile Warning Squadron on 1 November 1966 : Activated on 1 January 1967 : Redesignated 12th Missile Warning Group on 31 March 1977 : Redesignated 12th Missile Warning Squadron on 15 June 1983 : Redesignated 12th Missile Warning Group on 1 October 1989 : Redesignated 12th Space Warning Squadron on 15 May 1992

Assignments

* 71st Missile Warning Wing, 1 January 1967 * Fourteenth Aerospace Force, 30 April 1971 * 21st Air Division, 1 October 1976 *

Aerospace Defense Command Aerospace Defense Command was a major command of the United States Air Force, responsible for air defense of the continental United States. It was activated in 1968 and disbanded in 1980. Its predecessor, Air Defense Command, was establishe ...

, 1 October 1979 *

40th Air Division The 40th Air Division is an inactive United States Air Force unit. Its last assignment was with Fifteenth Air Force at Malmstrom Air Force Base, Montana. It was inactivated on 14 June 1991. As the 40th Bombardment Wing, the unit was one of the ...

, 1 December 1979 * 1st Space Wing, 1 May 1993 *

21st Operations Group Mission Delta 2 (MD2) is the United States Space Force's space domain awareness Space Delta, delta, headquartered at Peterson Space Force Base, Colorado. Mission Delta 2 tracks and monitors all human made objects from low Earth orbit to geosync ...

, 15 May 1992 *

21st Space Wing The 21st 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 i ...

, 1 June 1995 *

, 1 August 1999 *

, 24 July 2020 – Present

Bases stationed

, Greenland, 1 January 1967 – present

Equipment operated

(BMEWS)12th Space Warning Squadron Fact Sheet

List of commanders

References

* A Handbook of Aerospace Defense Organization 1946 - 1980, by Lloyd H. Cornett and Mildred W. Johnson, Office of History, Aerospace Defense Center, Peterson Air Force Base, Colorado * Winkler, David F. (1997), Searching the skies: the legacy of the United States Cold War defense radar program. Prepared for United States Air Force Headquarters Air Combat Command.

External links

Thule AFB: 821st Space Group Official Homepage
{{USAF Space Command Squadrons of the United States Space Force Aerospace Defense Command units Military history of Greenland