42nd Attack Squadron

The squadron was organized as the 42d Aero Squadron on 17 June 1917, shortly after the United States declared war on Germany. Based at Camp Kelly, Texas, the squadron flight-trained new pilots as part of the Air Service until demobilized on 21 February 1919.

The squadron was reconstituted in 1922 and became the 42d School Squadron in January 1923 as part of the 10th School Group at Kelly Field. In 1924 its lineage was consolidated with that of the 42d Aero Squadron. The 42d School Squadron continued its flying training role as part of the Air Corps in 1926, and was assigned to the Advanced Flying School at Kelly Field in 1931.

On 1 March 1935, with the activation of the General Headquarters Air Force, the squadron was redesignated the 42d Bombardment Squadron, although it remained a training squadron at Kelly until its inactivation in September 1936.

It was organized once again only a month later, as a Regular Army inactive unit assigned to the Eighth Corps Area, on 23 October 1936.[2] These units remained inactive, but had Organized Reserve officers assigned for training.

In September 1939, the squadron existed only as an inactive cadre of Organized Reserve officers, centered on Brownsville Municipal Airport, Texas. The squadron was reactivated on 1 February 1940 as part of the expansion of the Air Corps anticipating U.S. participation in World War II. It became part of the 11th Bombardment Group based at Hickam Field, Hawaii. Initially flying Douglas B-18 Bolos, the squadron was converting to Boeing B-17 Flying Fortresses when Hickam was attacked by Japanese carrier aircraft as part of the attack on Pearl Harbor.

The 42d Squadron deployed with the 11th Bombardment Group to Espiritu Santo, where it participated in the Guadalcanal Campaign. It conducted long-range reconnaissance and bombing missions throughout the South, Southwest, Central, and Western Pacific areas until the end of the war, converting to Consolidated B-24 Liberator bombers in 1943.

In 1946, while based on Guam, the 42d BS was briefly equipped with Boeing B-29 Superfortresses, but had no aircraft or flying mission from 1947 to its inactivation on in 1948.

The squadron was reactivated as a unit of the United States Air Force on 1 December 1948. Assigned to the 11th Bombardment Group as part of the Strategic Air Command, it flew Convair B-36 Peacemaker intercontinental bombers from Carswell Air Force Base, Texas. In 1957 it moved to Altus Air Force Base, Oklahoma, to convert to Boeing B-52 Stratofortresses.

In 1960 was reassigned to the 4043d Strategic Wing, being re-equipped with B-52E intercontinental heavy bombers. The squadron moved to Wright-Patterson Air Force Base, Ohio by SAC to disperse its heavy bomber force. Conducted worldwide strategic bombardment training missions and providing nuclear deterrent. Was inactivated in 1963 when SAC inactivated its strategic wings, replacing them with permanent Air Force Wings. Squadron was inactivated with its aircraft, personnel and equipment transferred to the 34th Bombardment Squadron.

On 9 November 2006, the squadron was redesignated the 42d Attack Squadron and reactivated at Creech Air Force Base, Nevada, initially as part of the 57th Wing before being assigned as one of the six unmanned aerial vehicle squadrons of the 432d Wing, and the only squadron designated as an attack squadron.

The 42d received its first General Atomics MQ-9 Reaper on 13 March 2007. Officially combat-operational in Afghanistan since September 2007, the typical MQ-9 system consists of several aircraft, a ground control station, communications equipment/links, spares, and active duty and/or contractor personnel. The crew consists of one unmanned aerial system pilot, one sensor operator and one mission intelligence coordinator.

• Unknown, 13 June 1917 – 21 February 1919 (probably Post Headquarters, Kelly Field and Wilbur Wright Field)
• 10th School Group, 5 July 1922
• Air Corps Advanced Flying School, 16 July 1931
• 3d Wing, GHQ Air Force, 1 March 1935 – 1 September 1936 (attached to Air Corps Advanced Flying School)
• Eighth Corps Area as a Regular Army Inactive unit on 23 November 1936[2]
• 11th Bombardment Group, 1 February 1940 – 20 October 1948
• 11th Bombardment Group, 1 December 1948 (attached to 11th Bombardment Wing after 16 February 1951)
• 11th Bombardment Wing, 16 June 1952
• 4043d Strategic Wing, 1 June 1960
• 57th Operations Group, 9 November 2006
• 432d Operations Group, 1 May 2007[1]
• 25th Attack Group, 12 July 2019

 This article incorporates public domain material from the Air Force Historical Research Agency website http://www.afhra.af.mil/.

• Clay, Steven E. (2011). US Army Order of Battle 1919–1941 (PDF). Vol. 3 The Services: Air Service, Engineers, and Special Troops 1919–1941. Fort Leavenworth, KS: Combat Studies Institute Press. ISBN 978-0-98419-014-0. LCCN 2010022326. OCLC 637712205. Retrieved 16 October 2012.
• Maurer, Maurer, ed. (1983) [1961]. Air Force Combat Units of World War II (PDF) (reprint ed.). Washington, DC: Office of Air Force History. ISBN 0-912799-02-1. LCCN 61060979. Retrieved 17 December 2016.
• Maurer, Maurer, ed. (1982) [1969]. Combat Squadrons of the Air Force, World War II (PDF) (reprint ed.). Washington, DC: Office of Air Force History. ISBN 0-405-12194-6. LCCN 70605402. OCLC 72556. Retrieved 17 December 2016.
• Ravenstein, Charles A. (1984). Air Force Combat Wings, Lineage & Honors Histories 1947–1977. Washington, DC: Office of Air Force History. ISBN 0-912799-12-9. Retrieved 17 December 2016.