nApril 12
nFranklin Roosevelt dies, and Harry Truman becomes the 33rd President of the United States.
nApril 25
nSecretary of War Stimson and General Groves brief President Truman on the bomb.  In this briefing, Groves insists that Japan had always been the target of the bomb’s use.
nApril 25  
nJoint Chief Planners advise Joint Chiefs of Staff that “unless a definition of unconditional surrender can be given which is acceptable to the Japanese, there is no alternative to annihilation and no prospect that the threat of absolute defeat will bring about capitulation.”
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