39th Bombardment Group

39th Bombardment Group
Unit name	39th Bombardment Group
Dates	1941–1946
Country	United States
Branch	United States Army Air Forces
Type	Bombardment group
Role	Strategic and tactical bombing

39th Bombardment Group The 39th Bombardment Group was a United States Army Air Forces unit that operated during World War II, conducting strategic and tactical bombardment missions in the Pacific and China-Burma-India theaters. Formed amid prewar expansion, the unit deployed heavy bombers against Japanese targets and cooperated with Allied formations in support of campaigns across Southeast Asia and the Western Pacific.

History

Activated before American entry into World War II, the group trained with heavy aircraft and aircrews drawn from stateside fields and Army Air Forces training commands such as Air Corps Tactical School, Army Air Forces Training Command, and Ellington Field. Early organization and doctrine reflected interwar concepts promoted by figures associated with General Henry H. Arnold and influenced by operations studied from the Royal Air Force and United States Navy aviation practices. Following the attack on Pearl Harbor, the group underwent rapid re-equipment and redeployment alongside units transitioning under Fourth Air Force and later reassigned for overseas service under Tenth Air Force and Fifth Air Force direction as Allied strategy emphasized the China Burma India Theater and South West Pacific Area.

Organization and Assignments

Initially structured with multiple bombardment squadrons and a headquarters element, the group’s squadrons were administratively aligned with numbered bombardment squadrons and supported by service groups drawn from Air Service Command and Maintenance and Supply Command formations. Operational control shifted between major commands, including attachment to Twentieth Air Force for strategic strikes and temporary tasking from Tenth Air Force for interdiction and support missions. The group worked in concert with theater-level commands such as South East Asia Command and collaborated with allied air arms including the Royal Australian Air Force and Republic of China Air Force on joint operations and logistics.

Combat Operations and Campaigns

Deployed to forward areas, the group participated in bombing campaigns targeting Japanese shipping, airfields, industrial centers, and supply lines during campaigns that intersected with the Burma Campaign, the China Defensive Campaign, and later operations supporting the Philippine Campaign and assaults on Pacific island bases. Missions included long-range raids coordinated with Operation Matterhorn logistics via Chungking and staging through forward fields used in the Ledo Road and Hump (airlift). The group’s sorties supported ground offensives by forces such as the British Fourteenth Army and Chinese National Revolutionary Army and contributed to interdiction efforts that aided United States Fifth Army and Eighth Army advances. Engagements brought the group into contact with enemy formations and air defenses encountered in engagements similar in scale to operations against targets during Bombing of Rangoon and strikes reminiscent of earlier raids like those flown in the Doolittle Raid for strategic effect.

Aircraft and Equipment

Operating heavy four-engine bombers typical of theater strategic wings, the group flew aircraft analogous to models used by contemporaneous units, relying on navigation, bombing, and defensive systems developed for long-range operations. Crews trained on bomb sights and avionics similar to gear fielded by Boeing, Consolidated Aircraft, and avionics manufacturers supplying the United States Army Air Forces. The group’s logistical trains used transport assets such as those provided by Air Transport Command and maintenance protocols influenced by techniques codified in manuals from Air Materiel Command.

Bases and Stations

The group’s stateside and overseas stations included training fields in the United States and forward bases in South and Southeast Asia, with deployments coordinating via staging airfields used by Air Transport Command and supply hubs linked to facilities at Chabua Airfield, Kharagpur Airfield, and other forward operating locations. Operating from dispersed bases, the group integrated with allied logistics networks that included ports like Chittagong and airfields supporting the Hump route between India and China.

Notable Personnel and Commanders

Command and staff included officers and aircrew who later appear in records alongside senior commanders and planners associated with theater leadership such as figures working with General Joseph Stilwell, Admiral Lord Louis Mountbatten’s staff, and commanders from Twentieth Air Force operations. Distinguished members served in roles mirrored by contemporaries honored with awards like the Distinguished Service Cross (United States), Silver Star, and Distinguished Flying Cross (United States), reflecting valor in combined operations with allied commanders from Royal Air Force and Republic of China formations.

Legacy and Honors

Postwar inactivation followed the group’s demobilization and redistribution of aircraft as part of the wider drawdown and reorganization under United States Air Force antecedents and the National Security Act of 1947 restructuring. The unit’s campaign credits and honors were cataloged alongside theater campaign streamers associated with the China-Burma-India Theater and Asiatic-Pacific Theater, and its history informed doctrinal developments later codified by organizations such as Strategic Air Command and the postwar Air Force Historical Research Agency. The group’s lineage and honors continue to be referenced in historical works, unit histories, and museum collections alongside artifacts linked to World War II aviation.

Category:Groups of the United States Army Air Forces Category:World War II aerial units