Details of the Campaign Against Japan. JCS 1388, 16 June 1945.
This is the JPS version mentioned above. In addition to the deletions noted above, the "enclosure" attached at the
end of this JCS paper is noteworthy. This enclosure, apparently prepared after the main draft was written, proposes further changes. One of these was language to replace the casualty estimate deleted from the JWPC version; this language offers the figures that General Hull had requested on 16 June for the 18 June meeting with the President. Hull's request presumably was prompted by the deletion of the JWPC figures and a belief on his part that, given the language of Admiral Leahy's memo, some figures had to be offered for the President.
This is a rather depressing, but realistic, point of view, that if the central government of Japan surrendered, it did not automatically mean that all the rest of the forces everywhere would surrender, and there were lots of troops on various islands and in China that could have chosen to fight on.
The overall campaign has been to get closer and closer to the Tokyo Plain, and Tokyo itself, and to isolate Japan as much as possible. They also wanted to make sure that the Japanese military and the Japanese people both could recognize what was being done, and their relative powerlessness to stop things from happening.
The number of aircraft that the U.S. would have had available for Operation Coronet, the invasion of the Tokyo Plain area.
A part of the report noting how hard it was to actually predict casualties. Note that the report has U.S. figures for killed, missing and wounded all together; the Japanese figures are for killed and for those taken prisoner, but does not include the number wounded.
The bottom part just deals with the number killed, which where some 22 Japanese died for every American that died.
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