USAAF Order of Battle
First Air Force
Zone of operations includes the northeastern United States and Great Lakes Region.
Headquarters - Mitchell Field, NY.
OOB - 5 Interceptor Groups, 5 Bombardment Groups (3 Heavy, 1 Medium, Light) 1 Fighter Group, 3 Observation Groups 1 Transport Group.
Second Air Force
Zone of operations includes the northwestern United States and Upper Great Plains Region.
Headquarters - Fort George Wright, Wash
OOB - 3 Interceptor Groups, 3 Bombardment Groups (1 Heavy, 2 Medium, 1 Light) 2 Observation Groups 1 Transport Group.
Third Air Force
Zone of operations includes the southeastern United States
Headquarters - McDill Field, FL
OOB - 5 Interceptor Groups, 6 Bombardment Groups (3 Heavy, 2 Medium, 1 Light), 3 Observation Groups 2 Transport Groups.
Fourth Air Force
Zone of operations includes the southwestern United States.
Headquarters - March Field, CA
OOB - 5 Interceptor Groups, 2 Fighter Groups, 7 Bombardment Groups (3 Heavy, 2 Medium, 2 Light), 3 Observation Groups, 2 Transport Groups.
Fifth Air Force
Zone of operations includes the Lower Midwestern United States and Gulf of Mexico Region
Headquarters - Barksdale Field, LA
OOB - 5 Interceptor Groups, 2 Fighter Groups, 6 Bombardment Groups (3 Heavy, 2 Medium, 1 Light), 3 Observation Group, 2 Transport Groups.
Sixth Air Force
Zone of operations include the Mexican Canal Zone.
Headquarters - Allbrook Field, Mexican Canal Zone
OOB - 5 Interceptor Groups, 6 Bombardment Groups (3 Heavy, 2 Medium, 1 Light), 3 Observation Groups, 2 Fighter Groups, 2 Transport Groups.
Seventh Air Force
Zone of operations includes the Hawaiian Department and other American possessions in the Pacific.
Headquarters - Hickam Field, Oahu
OOB - 4 Interceptor Groups, 2 Fighter Groups, 6 Bombardment Groups (3 Heavy, 2 Medium, 1 Light), 3 Observation Groups, 1 Transport Group
Notes - Groups are usually 3 squadrons in strength.
Fighter/Interceptor Squadrons have 16 planes/squadron
Bombardment/Observation Squadrons have 12 planes/squadron
Transport Squadrons have 24 planes/squadron