321st Air Expeditionary Wing
Trademark
UnclaimedA historically reconstituted United States Air Force organization whose lineage spans World War II bomber operations, strategic missile duty, and expeditionary training and advisory missions.
Last updated August 31, 2026
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Overview
The 321st Air Expeditionary Wing is a United States Air Force organization with a lineage extending from World War II medium-bomber operations to Cold War intercontinental ballistic missile duty and post-2001 expeditionary missions. It was originally constituted as the 321st Bombardment Group (Medium) on 19 June 1942 and activated at Barksdale Field, Louisiana, on 26 June of that year. Equipped with North American B-25 Mitchell bombers, the group deployed to North Africa in early 1943 and operated under the Twelfth Air Force. Its wartime missions included bombing and interdiction against rail yards, roads, bridges, ports, airfields, troop concentrations, and defensive positions across North Africa, Sicily, Italy, southern France, Bulgaria, Yugoslavia, and Greece. It also conducted psychological-warfare leaflet drops. The group participated in major Allied campaigns including the North African campaign, the reduction of Pantelleria and Lampedusa, the invasion of Sicily, the Salerno landings, the advance on Rome, the invasion of southern France, and operations in northern Italy. It received two Distinguished Unit Citations, one for an October 1943 raid near Athens and another for an August 1944 attack on Axis naval vessels at Toulon.
History
The organization was constituted as the 321st Bombardment Group (Medium) on 19 June 1942 and activated at Barksdale Field, Louisiana, on 26 June. Its operational squadrons were the 445th, 446th, 447th, and 448th Bombardment Squadrons. After training with B-25 Mitchell medium bombers at bases in the southeastern United States, it deployed to Algeria in early 1943 and joined the Twelfth Air Force. The group conducted combat, interdiction, and support missions against transportation networks, airfields, ports, shipping, military concentrations, and fortified positions. Its area of operations expanded from North Africa to Sicily, Italy, Greece, Bulgaria, Yugoslavia, and southern France. Leaflet missions added a psychological-warfare role. The unit supported the North African campaign, the Pantelleria and Lampedusa operations, the invasion of Sicily, the Salerno landings, the advance toward Rome, the southern France invasion, and the final Allied operations in northern Italy. It received two Distinguished Unit Citations, including one for the 8 October 1943 attack near Athens and another for the 18 August 1944 strike against naval vessels at Toulon. The group was disbanded in Italy on 12 September 1945 and briefly served as a reserve light-bomber group from 1947 to 1949.
- 2011
Planned Iraq mission transition
[1]The wing prepared to transfer designated missions and functions by 31 December as U.S. forces departed Iraq.
- 2008
Wing reactivated for Iraq advisory operations
[1]The 321st Air Expeditionary Wing was reactivated to lead the Iraq Training and Advisory Mission-Air Force.
- 2001
Expeditionary group established
[1]The lineage was converted to provisional status as the 321st Air Expeditionary Group for post-2001 expeditionary operations.
- 1998
Missile group inactivated
[1]Following force reductions and base realignment decisions, the 321st Missile Group inactivated on 30 September.
- 1971
Conversion to Minuteman III
[1]The wing began converting from Minuteman II to Minuteman III missiles, a process completed in 1973.
- 1966
Minuteman II force becomes operational
[1]By December, the wing had placed 150 Minuteman II missiles on operational status across three missile squadrons.
- 1963
Strategic missile era begins
[1]The 321st Strategic Missile Wing was organized at Grand Forks Air Force Base as a Minuteman II wing.
- 1953
Bombardment wing activated
[1]The 321st Bombardment Wing, Medium, was activated at Pinecastle Air Force Base, Florida, on 15 December.
- 1943
Deployment to the Mediterranean
[1]The group reached North Africa and began B-25 combat operations under the Twelfth Air Force.
- 1942
Constitution and activation
[1]The 321st Bombardment Group (Medium) was constituted on 19 June and activated on 26 June at Barksdale Field.
Products and positioning
A military force-generation, operational, training, advisory, and support organization rather than a commercial brand. Its identity has been reused across distinct Air Force missions while preserving the 321st lineage.
Medium bomber
B-25 Mitchell
The North American B-25 Mitchell was the group's principal combat aircraft during World War II. The 321st used it for bombing, interdiction, close support, attacks on transportation and port infrastructure, and leaflet missions across the Mediterranean theater.
Intercontinental ballistic missile · 1966
Minuteman II
The wing operated Minuteman II missiles at Grand Forks and became the first Strategic Air Command wing to deploy the system. Three strategic missile squadrons ultimately maintained a force of 150 operational missiles.
Intercontinental ballistic missile · 1971
Minuteman III
The organization converted to Minuteman III missiles between December 1971 and March 1973. The newer system introduced multiple independently targetable reentry vehicles and required extensive coordination during the transition.
Marketing campaigns
- 2010Operation New Dawn transition
Iraq · Kuwait
The wing continued its Iraqi aviation partnership mission as U.S. combat operations shifted from Operation Iraqi Freedom to Operation New Dawn.
Outcome. The organization focused on training, mentoring, advising, and assisting Iraqi forces ahead of the planned end of the U.S. military presence.
- 2008Iraq Training and Advisory Mission–Air Force
Iraq
The reactivated wing trained, advised, and assisted the Iraqi Air Force while also providing airfield, aerial-port, medical, base-support, and command-and-control capabilities for United States Forces–Iraq.
Outcome. The mission was broadened to ITAM-Air after Iraq separated fixed-wing and rotary-wing aviation responsibilities, allowing U.S. advisers to support both the Iraqi Air Force and Iraqi Army Aviation Command.
- 2001Operation Enduring Freedom
Afghanistan · Pakistan · Oman
The provisional expeditionary organization was associated with reconnaissance and support operations against Taliban and al-Qaeda forces. Public descriptions identify possible operations from locations including Jacobabad and Masirah, but the precise activity record is not fully established.
- 1943North African and Mediterranean operations
North Africa · Mediterranean theater
The group supported Allied operations through bombing, interdiction, reconnaissance-related support, and leaflet missions against Axis military and transportation targets.
Outcome. The group remained operational through the European war and received formal unit recognition for two high-risk missions.
Brand decisions
2008
Reactivation for Iraqi airpower developmentStrategyBackground
The United States required an organization to coordinate aviation training and advisory work in Iraq after the post-invasion security and force-development phases evolved.
Action taken
The Air Force reactivated the 321st as an expeditionary wing under United States Air Forces Central and assigned it the Iraq Training and Advisory Mission-Air Force.
Aftermath
The wing supported Iraqi aviation institutions and prepared to transfer designated functions by the end of 2011.
1995
Downgrade to missile-group statusStrategyBackground
Base Realignment and Closure decisions and reductions in the intercontinental ballistic missile force placed the Grand Forks missile mission on a path toward closure.
Action taken
The wing was reduced to group status and assigned responsibility for maintaining readiness while transferring alert duties to the 341st Missile Wing.
Aftermath
The 321st Missile Group inactivated in September 1998.
Sources1 sources
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