Bombardment Group: attached 1 July – 1 August 1942 307th Bombardment Group: attached 30 September – 20 October 1942 330th Bombardment Group: c. 15 April 1944 – 7 January 1945 331st Bombardment Group: attached 12 July 1944 – July 1945 333d Bombardment Group: attached 1 September – 1 November 1942; 7 July 1944 – August 1945 346th Bombardment Group: attached 18 August 1944 – September 1945 351st Bombardment Group: attached November – December 1942 376th Bombardment Group: attached 8 May – 10 November 1945 379th Bombardment Group: attached 3 – c. 18 November 1942 381st Bombardment Group: attached c. 1 December 1942 – c. 2 January 1943 382d Bombardment Group: attached 25 August 1944 – September 1945 383d Bombardment Group: attached 12 November 1942 – c. 25 October 1943; 28 August 1944 – September 1945 385th Bombardment Group: attached 1 February – June 1943 390th Bombardment Group: attached 26 January – 4 July 1943 393d Bombardment Group: attached 16 February – c. 2 March 1943 395th Bombardment Group: attached 16 February – c. 24 October 1943 396th Bombardment Group: attached 10 April – c. 4 November 1943 398th Bombardment Group: attached 1 March – c. 4 April 1943; 29 April – November 1943 401st Bombardment Group: attached 1 April – 1 October 1943 447th Bombardment Group: attached 1 May – November 1943 448th Bombardment Group: attached 11 September – November 1943; 25 July 1945 – c. 30 March 1946 449th Bombardment Group: attached 24 July 1945 – c. 30 March 1946 450th Bombardment Group: attached c. 26 July – 15 October 1945 452d Bombardment Group: attached 1 June – November 1943 456th Bombardment Group: attached 17 August – 17 October 1945 457th Bombardment Group: attached 1 July – November 1943 458th Bombardment Group: 25 July – c. 20 August 1945 463d Bombardment Group: attached 1 August – c. 4 November 1943 466th Bombardment Group: attached 25 July – c. 14 August 1945 467th Bombardment Group: attached 25 July 1945 – c. 30 March 1946 483d Bombardment Group: attached 20 September – c. 5 November 1943 484th Bombardment Group: attached 20 September – November 1943 485th Bombardment Group: attached 24 July 1945 – 30 March 1946 488th Bombardment Group: attached 1 October – c. 31 October 1943 489th Bombardment Group: attached c. 28 February – c. 2 April 1945; c. 10 July – September 1945 497th Bombardment Group: attached c. 15