Following were the key military and non-military figures from the Unites states during WW II
Franklin D Roosevelt - President of U.S
Harry S Truman- President of U.S
George Marshal- General of the Army And COS
Cordell Hull - Secretary of state
William Joseph Donovan- Director Office of strategic services.
J. Edgar Hoover- Director FBI
 

 I know some,henry arnold, dwight eisenhower,goerge marshall,matthew ridgeway,holland smith,joseph stilwell ,omar bradley and of course douglas maccarther ,how's that..

 Being ex-Navy, I have to get Admiral William 'Bull"  Halsey in the mix.
 
And all would have been for naught without the hard work and sacrifices of the American people at home.