In a painstaking process this alternate history storyline has been researched and is presented for your entertainment.
By using historical documents from the US Joint Chiefs of Staff we know exactly what the contingency plans were in the case of an expected Soviet attack in 1946.
WAR DEPARTMENT OFFICE OF THE CHIEF OF STAFF UNITED STATES ARMY WASHINGTON
22 August 1946
I have spoken with the President on the issues you raised in your memo dated 20 August. He understands that manpower issues are a real concern throughout both the Army and the Navy, but fails to see the reasoning behind allowing everyone but colored troops to service in normal Army units.
During the conversation the President asked more than once if complete desegregation would allow the Army to manage manpower easier. I believe the President is leaning towards that path. He has asked me to meet again with him on this subject on 5 November. At that meeting I plan to give my recommendation supporting gradual desegregation of the Army. * Until such time as the President makes his final decision on this subject, begin implementing your recommendations to reduce to manpower shortages.