548th Intelligence, Surveillance and Reconnaissance Group

The 548th Intelligence, Surveillance and Reconnaissance Group (548 ISRG) is an intelligence unit of the United States Air Force located at Beale Air Force Base, California. Its lineage reaches back to the 6th Photographic Technical Squadron, constituted on 20 November 1943 and activated on 1 December 1943. After training in the United States, the squadron deployed to the Southwest Pacific Theater and served in the Pacific through VJ Day. Following World War II it remained in the Far East as part of the occupation forces in Japan, and it was still in Japan as the 548th Reconnaissance Technical Squadron when the Korean War began in June 1950. It supported reconnaissance units in Japan until it was inactivated in 1960. The unit was reactivated in October 1965 to support Pacific Air Forces at Hickam Air Force Base, Hawaii. As the Vietnam War increased the demand for photographic interpretation, it expanded from a squadron to a group two years later, becoming the 548th Reconnaissance Technical Group on 1 October 1967. It continued to serve in the Pacific until inactivating in 1992. As the 548th Air Intelligence Group, it was activated in August 1992 to support Air Combat Command intelligence requirements, then inactivated again in October 1994. Its most recent activation took place at Beale Air Force Base in October 2003, when it was redesignated the 548th Intelligence Group and activated on 1 December 2003. It was redesignated the 548th Intelligence, Surveillance and Reconnaissance Group on 1 January 2009. The group's mission is to operate and maintain the AN/GSQ-272 "Sentinel" weapon system, also known as the Distributed Ground Station (DGS), and to provide combatant commanders with processing, exploitation and dissemination (PED) of actionable intelligence data collected by U-2, MQ-1, MQ-9 and RQ-4 aircraft and other platforms as required. The Sentinel system is described in the unit's public material as a $1 billion weapon system. The 548 ISRG is assigned to the 480th Intelligence, Surveillance and Reconnaissance Wing, with which it has served since 1 December 2003. Its component squadrons include the 9th Intelligence Squadron, the 13th Intelligence Squadron and the 48th Intelligence Support Squadron, all active since December 2003, and the 553d Intelligence Squadron, active since June 2022. Over its history the unit has been stationed at locations including Will Rogers Field, Oklahoma; Guadalcanal in the Solomon Islands; Morotai and Leyte in the Philippines; Tokyo and Yokota Air Base in Japan; Hickam Air Force Base, Hawaii; Langley Air Force Base, Virginia; and, since 1 December 2003, Beale Air Force Base, California.

The 548th Intelligence, Surveillance and Reconnaissance Group traces its origins to the 6th Photographic Technical Squadron, constituted on 20 November 1943 and activated on 1 December 1943. After training in the United States, the squadron deployed to the Southwest Pacific Theater, serving in the Pacific until VJ Day. After the end of World War II the squadron remained in the Far East, serving in the occupation forces in Japan. It was still in Japan as the 548th Reconnaissance Technical Squadron, a redesignation effective 7 January 1950, when the Korean War began in June 1950. It supported reconnaissance units in Japan until it was discontinued on 8 March 1960. The squadron was organized again on 8 October 1965 to support Pacific Air Forces at Hickam Air Force Base, Hawaii. As the Vietnam War increased the need for photographic interpretation, it expanded to become a group two years later, being redesignated the 548th Reconnaissance Technical Group on 1 October 1967. The 548th continued to serve in the Pacific until inactivating on 3 July 1991. As the 548th Air Intelligence Group the unit was activated on 27 August 1992, supporting Air Combat Command intelligence requirements until 1 October 1994 when it was again inactivated. It was redesignated the 548th Intelligence Group on 23 October 2003 and activated on 1 December 2003 at Beale Air Force Base, California. Its most recent redesignation, to the 548th Intelligence, Surveillance and Reconnaissance Group, took effect on 1 January 2009. Across its lineage the unit was assigned to a succession of organizations, including III Reconnaissance Command, Thirteenth Air Force, the 91st Reconnaissance Wing, Pacific Air Command (later Far East Air Forces), Fifth Air Force, the Japanese Air Defense Force, the 6007th Composite Reconnaissance Group (later 6007th Reconnaissance Group), the 67th Tactical Reconnaissance Wing, Pacific Air Forces, Air Combat Command, Second Air Force, Twelfth Air Force, and, since 1 December 2003, the 480th Intelligence Wing (later 480th Intelligence, Surveillance and Reconnaissance Wing). Its stations have included Will Rogers Field, Oklahoma; Guadalcanal in the Solomon Islands; Morotai and Leyte in the Philippines; Tokyo and Yokota Air Base in Japan; Showa Air Station, Japan; Hickam Air Force Base, Hawaii; Langley Air Force Base, Virginia; and Beale Air Force Base, California, where it has been stationed since 1 December 2003. Its component squadrons include the 9th Intelligence Squadron, the 13th Intelligence Squadron and the 48th Intelligence Support Squadron, active since December 2003, and the 553d Intelligence Squadron, active since June 2022.

• Constituted as the 6th Photographic Technical Squadron on 20 November 1943.

• Activated on 1 December 1943.

• Redesignated 548th Reconnaissance Technical Squadron on 7 January 1950.

• Discontinued on 8 March 1960.

• Organized again on 8 October 1965.

• Redesignated 548th Reconnaissance Technical Group on 1 October 1967.

• Inactivated on 3 July 1991.

• Redesignated 548th Air Intelligence Group on 1 August 1992 and activated on 27 August 1992.

• Inactivated on 1 October 1994.

• Redesignated 548th Intelligence Group on 23 October 2003 and activated on 1 December 2003 at Beale Air Force Base, California.

• Redesignated 548th Intelligence, Surveillance and Reconnaissance Group on 1 January 2009.

• 553d Intelligence Squadron active from June 2022.

United States Air Force intelligence unit providing processing, exploitation and dissemination of actionable intelligence to combatant commanders.

• AN/GSQ-272 Sentinel weapon system (Distributed Ground Station, DGS)

  A system operated and maintained by the 548 ISRG to provide processing, exploitation and dissemination of actionable intelligence data collected by U-2, MQ-1, MQ-9 and RQ-4 aircraft and other platforms as required.

1. 1548th Intelligence, Surveillance and Reconnaissance Group - Wikipediaen.wikipedia.org
2. 2548th Intelligence, Surveillance and Reconnaissance Group - Wikidatawikidata.org