Components
Wings
- 6th Fighter Wing, 7 June 1942 – 14 September 1942
- 65th (formerly 4th Air Defense) Fighter Wing, 4 June 1943 – 15 September 1944
- 66th (formerly 5th Air Defense) Fighter Wing, 3 July 1943 – 15 September 1944
- 67th Fighter Wing, 26 August 1943 – 15 September 1944
Groups (assigned to VIII Fighter Command)
- 1st Fighter Group, (P-38), 10 June-16 August 1942
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- RAF Goxhill
- 4th Fighter Group, (Spitfire) 12 September 1942 – 30 June 1943
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- RAF Bushey Hall; RAF Debden
- 20th Fighter Group, (P-38) 25 August 1943 – 6 October 1943
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- RAF Kings Cliffe
- 31st Fighter Group (P-38) 10 June-16 August 1942
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- RAF Atcham; RAF Westhampnett
- 52d Fighter Group (Spitfire) 13 July-14 August 1942 (Attached to Royal Air Force)
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- RAF Eglinton
- 55th Fighter Group, (P-38) 15 September 1943 – 6 October 1943
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- RAF Nuthampstead
- 56th Fighter Group: (P-47) 12 January-30 June 1943
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- RAF Kings Cliffe; RAF Horsham St Faith
- 78th Fighter Group, (P-38) 29 November 1942 – 30 June 1943
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- RAF Goxhill; RAF Duxford
- 350th Fighter Group: * 2 October 1942 – 6 January 1943
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- RAF Duxford
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- 352d Fighter Group, (P-47) 8 July-6 October 1943
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- RAF Bodney
- 353d Fighter Group, (P-47) 7 June 1943 – 18 August 1943
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- RAF Goxhill; RAF Metfield
- 354th Fighter Group: (P-51, P-47) 4 November 1943 – 17 April 1944
- Assigned to Ninth Air Force under operational control of VIII Fighter Command
- RAF Greenham Common; RAF Boxted; RAF Lashenden
- 355th Fighter Group, (P-47) 6 July 1943 – 18 August 1943
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- RAF Steeple Morden
- 361st Fighter Group, (P-47; P-51) 30 November 1943 – 12 December 1943; 1 February 1945 – 10 April 1945
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- RAF Bottisham; RAF Little Walden
- 495th Fighter Training Group**: November 1942-February 1945
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- RAF Atcham
- 496th Fighter Training Group**: August 1942-January 1945
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- RAF Goxhill
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Groups (assigned to wings)
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- Wing and assigned groups reassigned to Twelfth Air Force, 14 September 1942
- 1st Fighter Group: (P-38), 16 August-14 September 1942
- RAF Goxhill; RAF Kirton In Lindsey; RAF Ibsley
- 14th Fighter Group: (P-38), 14 August-14 September 1942
- RAF Atcham
- 31st Fighter Group: (P-38), 16 August-14 September 1942
- RAF Westhampnett
- 52d Fighter Group (Spitfire) 18 August-14 September 1942
- RAF Eglinton; RAF Goxhill
- 4th Fighter Group, (Spitfire, P-47, P-51) 30 June 1943
- RAF Debden
- Attached to: 2d Bombardment (later Air) Division, 15 September 1944-November 1945
- 56th Fighter Group, (P-47) 30 June 1943
- RAF Horsham St Faith; RAF Halesworth; RAF Boxted
- Attached to: 2d Bombardment (later Air) Division, 15 September 1944 – 10 October 1945
- 78th Fighter Group, (P-47, P-51) 30 June-18 August 1943
- RAF Duxford
- 355th Fighter Group, (P-47, P-51) 18 August 1943
- RAF Steeple Morden
- Attached to: 2d Bombardment (later Air) Division, 15 September 1944 – 3 July 1945
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- 361st Fighter Group, (P-47, P-51) 8 August-15 September 1944
- RAF Bottisham; RAF Little Walden
- Attached to: 2d Bombardment (later Air) Division, 15 September-24 December 1944
- Further attached to: XIX Tactical Air Command, 24 December 1944 – 1 February 1945 (Battle of the Bulge)
- Attached to: 2d Bombardment (later Air) Division, 10 April-3 November 1945
- 479th Fighter Group, (P-38, P-51) 15 May 1944
- RAF Wattisham
- Attached to: 2d Bombardment (later Air) Division, 15 September 1944 – 22 November 1945
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- 55th Fighter Group, (P-38, P-51) 5 October 1943
- RAF Nuthampstead; RAF Wormingford
- Attached to: 3d Bombardment (later Air) Division, 15 September 1944 – 20 July 1945
- 78th Fighter Group, (P-47, P-51) 18 August 1943
- RAF Goxhill; RAF Duxford
- Attached to: 3d Bombardment (later Air) Division, 15 September 1944 – 10 October 1945
- 339th Fighter Group, (P-51) 4 April 1944
- RAF Fowlmere
- Attached to: 3d Bombardment (later Air) Division 15 September 1944-October 1945
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- 353d Fighter Group, (P-47, P-51) 18 August 1943
- RAF Goxhill; RAF Metfeld; RAF Raydon
- Attached to: 3d Bombardment (later Air) Division, 15 September 1944 – 10 October 1945
- 357th Fighter Group (P-51) 31 January 1944
- RAF Raydon
- Attached to: 1st Bombardment (later Air) Division, 15 September 1944 – 8 July 1945
- 359th Fighter Group, (P-47, P-51) 20 October 1943 – 1 November 1943
- RAF East Wretham
- 361st Fighter Group, (P-47, P-51) 12 December 1943 – 11 March 1944
- RAF Bottisham; RAF Little Walden
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- 20th Fighter Group, (P-38, P-51) 6 October 1943
- RAF Kings Cliffe
- Attached to: 1st Bombardment (later Air) Division, 15 September 1944 – 11 October 1945
- 352d Fighter Group, (P-47, P-51) 6 October 1943
- RAF Bodney
- Attached to: 1st Bombardment (later Air) Division, 15 September 1944 – 13 April 1945
- Further attached to: IX Tactical Air Command, 23 December 1944 – 13 April 1945 (Battle of the Bulge)
- 356th Fighter Group, (P-47, P-51) 8 August 1944
- RAF Martlesham Heath
- Attached to: 1st Bombardment (later Air) Division, 15 September 1944 – 2 November 1945
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- 359th Fighter Group, (P-47, P-51) 1 November 1943
- RAF East Wretham
- Attached to: 1st Bombardment (later Air) Division, 15 September 1944 – 2 November 1945
- 361st Fighter Group, (P-51) 11 March-8 August 1944
- RAF Little Walden
- 364th Fighter Group, (P-38, P-51) 10 February 1944
- RAF Honington
- Attached to: 1st Bombardment (later Air) Division, 15 September 1944 – 3 November 1945
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