Army Air Base, 1–22 April 1943 Kissimmee Army Air Field, 22 April-15 October 1943 420th Night Fighter Squadron, (Douglas P-70 Havoc) (attached to: 481st Night Fighter Operational Training Group, 17–26 July 1943) Orlando Army Air Base, 1 June 1943 Kissimmee Army Air Field, 1 June-20 August 1943 Dunnellon Army Air Field 20 August 1943 – 18 January 1944 421st Night Fighter Squadron, (Douglas P-70 Havoc) (attached to: 481st Night Fighter Operational Training Group, 17 July-7 November 1943) Orlando Army Air Base, 1 May-1 October 1943 Kissimmee Army Air Field, 4 October-7 November 1943 422d Night Fighter Squadron, (Douglas P-70 Havoc) (assigned to AAF Tactical Center after 8 January 1943) Orlando Army Air Base, 1 August-3 November 1943; 6 January-13 November 1944 Kissimmee Army Air Field, 3 November 1943 – 6 January 1944 423d Night Fighter Squadron (Douglas P-70 Havoc) Orlando Army Air Base, 1 October 1943 – 29 January 1944 425th Night Fighter Squadron, (Douglas P-70 Havoc) Orlando Army Air Base, 1 December 1943 – 20 January 1944 Schools Fighter Command School, 4 October 1942 – c. 4 January 1943 Army Air Forces School of Applied Tactics (later Army Air Forces School), 21 January 1943 – 29 November 1945 Base units 900th Army Air Forces Base Unit (Army Air Forces School of Applied Tactics), 1 April 44-1 Jun 45 Redescribed (Army Air Forces Tactical Center), 1 Jun 45-3 Jul 45 Orlando AAB 901st Army Air Forces Base Unit (Tactical Wing), 29 Mar 44-15 Mar 45 Orlando AAB 901st Army Air Forces Base Unit (Army Air Forces Board), 1 Jun 45-3 Jul 45 Orlando AAB 902d Army Air Forces Base Unit (Base Complement), 29 March 1944 – 1945 Redescribed (Facilities), 1945 – 20 July 46 Orlando Army Air Base(-Jun 46) Eglin Field 903d Army Air Forces Base Unit (Base Services), 29 March–1 June 1944 Orlando Army Air Base 903d Army Air Forces Base Unit (Base Complement), 6 September–1 October 44 Redescribed (Bombardment), 1 October 1944 – 1 July 1945 Redesignated 621st Army Air Forces Base Unit Pinecastle Army Air Field 904th Army Air Forces Base Unit (Aviation), 1 April–31 May 44 Orlando Army Air Base 904th Army Air Forces Base Unit (Fighter), 6 September–31 December 1944 Redescribed (Base Complement), 1 May–7 July 1945 Kissimmee Army Air Field 906th Army Air Forces Base Unit (Bombardment, Heavy), 29 March–6 September 1944 Pinecastle Army Air Field 907th Army Air Forces Base Unit (Bombardment, Medium