439th Operations Group
The 439th Operations Group is an active United States Air Force Reserve airlift organization and the flying component of the 439th Airlift Wing.
Last updated August 26, 2026
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Overview
The 439th Operations Group is an active United States Air Force Reserve unit based at Westover Air Reserve Base in Massachusetts. It forms the operational and flying component of the 439th Airlift Wing, which is assigned to the Twenty-Second Air Force. Unlike a commercial brand, the group is a military organization whose identity is associated with airlift readiness, global mobility, aeromedical evacuation, air terminal support, contingency response, and the stewardship of a long operational lineage. The unit traces its history to the 439th Troop Carrier Group, established and activated in 1943 for service during the Second World War. After training in the United States with C-47 Skytrain transports, the group moved to England in early 1944 and joined the Ninth Air Force. Its first major combat assignment was the airborne assault during Operation Overlord on 6 June 1944. Aircraft from the group dropped paratroopers of the 101st Airborne Division behind Utah Beach and returned the next day towing gliders carrying reinforcements. The missions took place in difficult weather and under intense anti-aircraft fire; three aircraft failed to return. The group was subsequently recognized with a Distinguished Unit Citation and a French citation. During the remainder of the war, the organization performed a broad range of troop carrier and logistics duties. It supported the invasion of southern France, transported cargo to and from Italy, dropped or carried airborne forces during the Allied campaign in the Netherlands, delivered glider-borne supplies during the Battle of the Bulge, and supported the Rhine crossing in March 1945. Its aircraft moved food, clothing, medicine, fuel, ordnance, and other supplies to forward areas while also evacuating wounded personnel. After Victory in Europe, the group converted from C-47s to C-46 aircraft and helped move displaced persons from Germany to France and Belgium. It returned to the United States in 1945 and was inactivated in June 1946. The lineage reappeared in the Air Force Reserve in the postwar period. The group trained in troop carrier operations from 1949 until its personnel were absorbed into other Air Force organizations during the Korean War mobilization in 1951. It was reactivated in 1952 as a fighter-bomber group and continued in that role until the late 1950s. In 1966, under the designation 439th Military Airlift Group, it was organized at Rhein-Main Air Base in West Germany. There it coordinated airlift units and provided air transport and aeromedical evacuation services within Europe and, when required, beyond the region. Its support during the Middle East crisis of May and June 1967 earned an Air Force Outstanding Unit Award. The present 439th Operations Group was activated in the Reserve on 1 August 1992. Its modern mission centers on worldwide air movement of personnel, equipment, supplies, and medical patients, including airdrop and combat offloading capabilities. The group also performs the peacetime work necessary to sustain mission readiness: recruiting, training, organizing, and supervising personnel. Its principal flying unit is the 337th Airlift Squadron, which operates C-5M Super Galaxy strategic transports. The group also includes the 439th Aeromedical Evacuation Squadron, the 439th Operations Support Squadron, and the 439th Contingency Response Squadron. The transition to the C-5M fleet marked an important recent modernization phase. The group received its first C-5M Super Galaxy on 2 June 2017, beginning delivery of eight aircraft. In the same year, the final C-5A assigned to Westover departed for retirement at Davis-Monthan Air Force Base. The group remains an active component of the United States military air mobility system, supporting training, exercises, readiness requirements, and potential worldwide deployments.
History
The organization's lineage began with the 439th Troop Carrier Group, established on 14 May 1943 and activated on 1 June of that year. Equipped with C-47 Skytrain transports, it trained in the United States before moving to England in February and March 1944 for assignment to the Ninth Air Force. During the Normandy invasion, aircraft from the group carried and dropped paratroopers of the 101st Airborne Division during the first hours of D-Day. On 7 June, the group returned with gliders carrying additional personnel and equipment. Weather, navigation challenges, and anti-aircraft fire made the missions hazardous, and three aircraft did not return. The unit received a Distinguished Unit Citation and recognition from France for its performance. After Normandy, the group combined airborne operations with sustained logistical support. Its air echelon moved to Italy in July 1944, where it transported cargo to Rome and evacuated wounded personnel. On 15 August, it supported the invasion of southern France by dropping paratroopers of the 517th Parachute Infantry Regiment and later towing gliders. The group returned to England in late August and resumed cargo work. After relocating to France in September, it supported the airborne attack in the Netherlands near Nijmegen, including the movement of reinforcements by glider. In December, it participated in the Battle of the Bulge by delivering supplies to the 101st Airborne Division near Bastogne. During the March 1945 Rhine crossing, its aircraft towed gliders carrying troops of the 17th Airborne Division toward Wesel. The group also provided extensive theater logistics, moving food, clothing, medicine, gasoline, ordnance equipment, and other supplies to forward areas. It evacuated patients to rear-area hospitals and, after the end of hostilities in Europe, converted to C-46 aircraft. These aircraft were used to transport displaced persons from Germany to France and Belgium. The group returned to the United States between July and September 1945 and was inactivated on 10 June 1946. The unit was redesignated the 439th Troop Carrier Group, Medium, and activated in the Reserve on 27 June 1949. It was ordered to active service on 1 April 1951 during the Korean War period and inactivated two days later, with its personnel used as replacements for Air Force organizations around the world. It was reactivated on 15 June 1952 as the 439th Fighter-Bomber Group. The group trained in fighter-bomber operations until it was inactivated in the late 1950s as the parent wing adopted a tri-deputate structure. The lineage was revived as the 439th Military Airlift Group in 1965. The group was organized at Rhein-Main Air Base, West Germany, on 8 January 1966, where it controlled assigned and attached Military Airlift Command units. Its responsibilities included air transport and aeromedical evacuation across Europe and occasional missions outside the region. Support provided during the Middle East crisis in May and June 1967 resulted in an Air Force Outstanding Unit Award. The military airlift group was inactivated on 24 December 1968. On 1 August 1992, the organization was redesignated and activated as the 439th Operations Group in the Air Force Reserve. Since then, it has trained for and conducted global airlift operations, moving personnel, equipment, supplies, and patients while participating in exercises and readiness activities. The group is stationed at Westover Air Reserve Base as part of the 439th Airlift Wing and Twenty-Second Air Force. Its contemporary structure includes the 337th Airlift Squadron, the 439th Aeromedical Evacuation Squadron, the 439th Operations Support Squadron, and the 439th Contingency Response Squadron. A major equipment transition occurred in 2017. The group accepted its first C-5M Super Galaxy on 2 June, initiating delivery of eight aircraft. On 7 September of the same year, the final C-5A left Westover for retirement at Davis-Monthan Air Force Base. The C-5M provides the group with a modern strategic airlift platform for worldwide movement of outsized cargo, personnel, and equipment. The group's continuing mission combines operational flying with the recruiting, training, supervision, and readiness functions required of a United States Air Force Reserve unit.
- 2017
C-5M modernization begins
[1]The group received its first C-5M Super Galaxy on 2 June, beginning delivery of eight aircraft and replacing its older C-5A fleet.
- 1992
439th Operations Group activated in the Reserve
[1]The present operations-group designation was activated on 1 August, with a mission focused on global airlift and operational readiness.
- 1966
Military airlift organization formed at Rhein-Main
[1]The 439th Military Airlift Group was organized at Rhein-Main Air Base to coordinate airlift and aeromedical evacuation operations in Europe.
- 1952
Reactivated as a fighter-bomber group
[1]The organization returned to the Air Force Reserve as the 439th Fighter-Bomber Group and trained in fighter-bomber operations.
- 1945
Rhine crossing and postwar transport
[1]The unit supported the airborne assault across the Rhine and later transported displaced persons after converting from C-47 to C-46 aircraft.
- 1944
Normandy airborne operations
[1]The group dropped paratroopers during the Normandy invasion on 6 June and flew a glider reinforcement mission the following day.
- 1944
Southern France and Netherlands operations
[1]The group supported the invasion of southern France in August and the Allied airborne attack in the Netherlands in September.
- 1943
439th Troop Carrier Group established and activated
[1]The 439th Troop Carrier Group was established on 14 May and activated on 1 June with a mission centered on troop transport and airborne operations.
Products and positioning
A reserve strategic-airlift organization focused on global mobility, operational readiness, medical evacuation, and contingency support.
Strategic military airlift aircraft · 2017
C-5M Super Galaxy
The C-5M Super Galaxy is the group's principal current airlift platform. Operated by the 337th Airlift Squadron, it supports long-range movement of troops, supplies, equipment, and other military cargo. The group began receiving the type in 2017, with eight aircraft identified for the unit.
Strategic military airlift aircraft
C-5A Galaxy
The C-5A was the earlier-generation strategic airlifter operated by the organization at Westover. The unit's final C-5A departed for Davis-Monthan Air Force Base on 7 September 2017 as the group transitioned to the C-5M Super Galaxy.
World War II troop carrier
C-47 Skytrain
The C-47 Skytrain formed the group's original World War II equipment base. It was used for paratroop drops, glider towing, cargo transport, patient evacuation, and major airborne operations in Normandy, southern France, the Netherlands, and across the Rhine.
Postwar military transport aircraft
C-46 Commando
After Victory in Europe, the group converted to C-46 aircraft and used them to transport displaced persons from Germany to France and Belgium before returning to the United States.
Marketing campaigns
- 1945Rhine airborne assault
Wesel · Germany
Each aircraft assigned to the group towed two gliders carrying troops of the 17th Airborne Division during the Allied assault across the Rhine.
Outcome. The operation helped deliver airborne forces into the final campaigns in Germany.
- 1944Operation Overlord
Normandy · France
The group dropped paratroopers of the 101st Airborne Division during the Normandy invasion and returned the following day with gliders carrying reinforcements.
Outcome. The group received a Distinguished Unit Citation and a French citation for its performance.
- 1944Operation Dragoon
Southern France
The air echelon supported the invasion of southern France on 15 August by dropping paratroopers of the 517th Parachute Infantry Regiment and towing reinforcement gliders.
Outcome. The group's participation earned another citation from the French government.
- 1944Operation Market Garden
The Netherlands
After moving to France, the group dropped paratroopers of the 82nd Airborne Division near Nijmegen and towed gliders carrying airborne reinforcements.
Outcome. The group continued its combination of airborne support and cargo missions during the Allied advance.
- 1944Battle of the Bulge support
Belgium
The group released gliders carrying supplies for the 101st Airborne Division near Bastogne during the December German offensive.
Outcome. The mission supported the encircled Allied forces with airborne logistics.
Brand decisions
2017
Transition from C-5A to C-5M Super GalaxyGeneration changeBackground
The group began modernizing its strategic-airlift equipment at Westover Air Reserve Base.
Action taken
It received its first C-5M Super Galaxy on 2 June and began accepting eight aircraft planned for the unit; the last C-5A departed on 7 September.
Aftermath
The group moved to a newer strategic-airlift fleet while the retired C-5A aircraft were transferred to Davis-Monthan Air Force Base.
1944
Conversion from C-47 to C-46 aircraftGeneration changeBackground
Following the end of combat operations in Europe, the group required a transport platform for postwar movement missions.
Action taken
The group converted from C-47 Skytrains to C-46 aircraft and used them to transport displaced persons.
Aftermath
The organization continued transport duties until returning to the United States and being inactivated in 1946.
Sources1 sources
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