1936-1939

(Watch the video to understand the situation. Credit to Kaiser Cat Cinema for the video )

Belligerents

United States of America
Capitol: Washington D.C
Leader : General MacArthur
Supported by : French Republic , Commonwealth of Canada and German Empire (Will sent volunteer units )
*note- still has the support of Major elements of the us navy

Combined Syndicates of America
Capitol : Chicago
Leader : Jack Reed
Supported by : Union of Britian, French Commune and United Mexican States (will sent volunteer units)

American Union State
Capitol : Atlanta
Leader : Huey Long
Supported: (????)

Pacific States of America
Capitol : Sacramento
Leader : Hiram Johnson
Supported by : Japan (will sent volunteer units)

( I can't go futher with making a list for aircraft and tanks because there's a lot. Though if your oc is pilot/ tank commander and ask which type of aircraft or vehicle you want. I can suggest you one )