506th Air Expeditionary Group
The 506th Air Expeditionary Group was a provisional United States Air Force organization that supported combat operations, base security, flight operations, and reconstruction activities in Iraq.
Last updated October 14, 2026
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Overview
The 506th Air Expeditionary Group was a provisional United States Air Force unit associated most recently with operations at Kirkuk Regional Air Base in Iraq. Unlike a commercial brand, it was a military organization whose identity and capabilities changed according to the mission assigned to it. The group was placed under the authority of Air Combat Command for activation or inactivation as required and, during the Iraq War, was associated with the 332d Air Expeditionary Wing at Joint Base Balad. Its latest known activation began in April 2003 and continued until approximately 2011. The unit’s lineage reaches back to the 506th Fighter Group, Single Engine, established on 5 October 1944 and activated at Lakeland Army Air Field, Florida, on 21 October of that year. The original group comprised the 457th, 458th, and 462d Fighter Squadrons. Its World War II mission was very-long-range fighter escort for B-29 Superfortress bombers in the Pacific. The group trained with P-51 Mustangs, emphasizing fuel-efficient cruise techniques, long-distance formations, aerial gunnery, bombing, instrument flying, and rocket employment. The group moved through the Pacific in 1945, reaching Guam in March and operating from Tinian before joining its ground elements on Iwo Jima. From North Field, Iwo Jima, its aircraft conducted combat patrols, defended the island, struck Japanese and Bonin Islands targets, and escorted B-29 formations. The organization was inactivated at Camp Anza, California, in December 1945. During the Cold War, the lineage was represented by the 506th Strategic Fighter Wing, activated at Dow Air Force Base, Maine, in January 1953. It initially operated F-84G Thunderjets and later F-84F Thunderstreaks, performing fighter-escort training for Strategic Air Command bomber forces and participating in air-defense responsibilities. The wing deployed to Misawa Air Base, Japan, in 1953 and transferred to Tinker Air Force Base, Oklahoma, in 1955. As SAC bomber aircraft became faster and the fighter-escort concept lost relevance, the wing moved to Tactical Air Command in 1957, adopted F-100D Super Sabres, and participated in tactical exercises and overseas rotations. It was inactivated in April 1959. The lineage returned in the Air Force Reserve in 1972 as the 506th Tactical Fighter Group at Carswell Air Force Base, Texas. Equipped with F-105 Thunderchiefs transferred from Vietnam-era service, the group was inactivated in March 1973 during the post-Vietnam drawdown. In 1984, the tactical fighter group and the earlier tactical fighter wing were consolidated for lineage purposes. The organization became the 506th Air Expeditionary Group on 22 April 2003, when it was redesignated and converted to provisional status for the Iraq War. At Kirkuk, it supported airfield operations, installation security, logistics, engineering, communications, medical services, and other base functions. The group initially operated A-10 Thunderbolt II aircraft for close air support and intelligence, surveillance, and reconnaissance-related missions, although the final A-10s left in spring 2004. At various points, roughly 1,000 active-duty, Reserve, and Air National Guard personnel served in the group during an expeditionary rotation, while the installation also supported several thousand Army personnel at Forward Operating Base Warrior. Its subordinate and associated organizations included expeditionary medical, civil-engineering, operations-support, logistics-readiness, communications, security-forces, and services squadrons, as well as the Kirkuk Provincial Reconstruction Team. The group also supported flying training, air-control, Iraqi air-force advisory, and base-support organizations. Security responsibilities gradually shifted toward Iraqi security institutions and ultimately to United States Army forces. The 506th Expeditionary Security Forces Squadron was inactivated on 28 May 2010. The group itself was inactivated around 2011, after the conclusion of its latest known operational period.
History
The 506th Air Expeditionary Group’s lineage began with the 506th Fighter Group, Single Engine, constituted on 5 October 1944 and activated on 21 October at Lakeland Army Air Field, Florida. Its three fighter squadrons trained for very-long-range escort of B-29 bombers in the Pacific. Flying P-51 Mustangs, crews practiced fuel-conserving cruise procedures, escort formations, combat patrols, gunnery, bombing, instrument flight, and rocket operations. In February 1945, the group’s air echelon traveled to California and then across the Pacific aboard USS Kalinin Bay. It reached Guam in March and operated from Tinian while engineers prepared North Field on Iwo Jima. Assigned to Twentieth Air Force and associated with VII Fighter Command, the group flew patrols from the Marianas and later moved to Iwo Jima. From there it defended the island, attacked airfields, antiaircraft positions, communications facilities, shipping, and other targets in the Bonin Islands and Japan, and escorted B-29 raids. It returned to the United States and was inactivated at Camp Anza on 16 December 1945. A successor lineage was activated as the 506th Strategic Fighter Wing at Dow Air Force Base, Maine, in January 1953. Its F-84 aircraft supported Strategic Air Command’s fighter-escort and air-defense concepts. The wing deployed to Misawa, Japan, from August to November 1953 and later received an air-refueling squadron equipped with KB-29P tankers. After moving to Tinker Air Force Base in 1955, it trained with SAC bomber wings. The emergence of faster B-47 and B-52 bombers made the escort mission increasingly impractical. In 1957 the wing transferred to Tactical Air Command, became a fighter-day wing, and transitioned to F-100D Super Sabres. It was redesignated a tactical fighter wing in 1958 and inactivated in 1959. The lineage was revived in the Air Force Reserve in 1972 as the 506th Tactical Fighter Group at Carswell Air Force Base. Its F-105 Thunderchiefs were aircraft returning from Vietnam service, and the group’s existence lasted only until March 1973 amid the force reductions following the end of direct United States involvement in the war. In 1984, the tactical fighter group and the earlier tactical fighter wing were consolidated. On 22 April 2003, the consolidated lineage was redesignated the 506th Air Expeditionary Group and converted to provisional status. The group was assigned to Kirkuk Regional Air Base, Iraq, during Operation Iraqi Freedom. Its responsibilities extended beyond flying operations: it supported security, engineering, communications, logistics, medical services, installation services, safe flight operations, and reconstruction coordination. The group initially hosted A-10 Thunderbolt II close-air-support operations, but those aircraft left in spring 2004. The expeditionary organization worked alongside Iraqi and United States Army agencies. Its associated elements included an Iraqi air-force advisory squadron, flying-training and air-control units, a provincial reconstruction team, and multiple base-support squadrons. Security duties were gradually transferred to Iraqi institutions and then to United States Army forces. The 506th Expeditionary Security Forces Squadron was inactivated on 28 May 2010. The group was ultimately inactivated around 2011, and no later activation is established by the supplied references.
- 2011
Latest known activation ended
[1]The provisional group was inactivated approximately in 2011.
- 2010
Security squadron inactivated
[1]The 506th Expeditionary Security Forces Squadron was inactivated on 28 May as installation security responsibilities shifted.
- 2003
Expeditionary group activated in Iraq
[1]The lineage became the provisional 506th Air Expeditionary Group on 22 April and was assigned to Kirkuk Regional Air Base the following day.
- 1973
Reserve group inactivated
[1]The tactical fighter group was inactivated on 25 March during the post-Vietnam drawdown.
- 1972
Air Force Reserve reactivation
[1]The 506th Tactical Fighter Group was activated at Carswell Air Force Base with F-105 Thunderchiefs.
- 1959
Wing inactivated
[1]The tactical fighter wing was inactivated on 1 April amid budget-related force reductions.
- 1957
Transfer to Tactical Air Command
[1]The unit left Strategic Air Command, became a fighter-day wing, and began transitioning to F-100D Super Sabres.
- 1953
Strategic Fighter Wing activated
[1]The 506th Strategic Fighter Wing began operations at Dow Air Force Base with F-84 fighter aircraft.
- 1953
Deployment to Misawa
[1]The wing deployed to Misawa Air Base, Japan, for northern Japan air-defense duties.
- 1945
Pacific combat operations
[1]The group deployed through Guam and Tinian to Iwo Jima, flying patrols, air-defense missions, attacks, and B-29 escort operations.
Products and positioning
A mission-specific United States Air Force expeditionary organization rather than a consumer or commercial brand. Its operational role centered on combat air support, airfield and installation security, base sustainment, flight safety, logistics, communications, engineering, medical support, and assistance to reconstruction and Iraqi security institutions.
Marketing campaigns
- 2003Operation Iraqi Freedom
Iraq
As a provisional expeditionary group at Kirkuk, the unit supported combat air operations, safe flight activity, base security, sustainment, and reconstruction-related work.
Outcome. The group remained associated with Kirkuk operations until approximately 2011.
- 1945Pacific Theater operations
Western Pacific · Japan
The 506th Fighter Group conducted long-range patrols, island defense, ground attacks, and B-29 escort missions from Iwo Jima during the final months of World War II.
Outcome. The group completed its wartime service and was inactivated in December 1945.
Brand decisions
2010
Transfer of base-security responsibilitiesStrategyBackground
The United States sought to shift selected installation-security functions to Iraqi security institutions and other military organizations.
Action taken
Security duties were transferred progressively, and the 506th Expeditionary Security Forces Squadron was inactivated on 28 May.
Aftermath
A United States Army special-troops battalion assumed the relevant guard duties in late May 2010.
2004
End of initial A-10 presence at KirkukStrategyBackground
The group initially operated A-10 Thunderbolt II aircraft for close air support and related missions.
Action taken
The final A-10 aircraft departed the base in spring 2004.
Aftermath
The group continued its broader airfield, security, sustainment, and reconstruction-support responsibilities without that initial aircraft detachment.
2003
Conversion to provisional expeditionary statusStrategyBackground
The Iraq War required a flexible organization capable of being assembled around an operating base and adjusted as operational needs changed.
Action taken
The Air Force redesignated the lineage as the 506th Air Expeditionary Group and converted it to provisional status for assignment to Kirkuk.
Aftermath
The group became a multi-function base-support and combat organization rather than a permanently staffed fighter unit.
Sources2 sources
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