>>273
＞次の作戦は決まっていたが、原爆完成でトルーマンが取り消した。

？

Letter on Russia Entering the Pacific War
From: Harry S. Truman, President of the United States of America
To: James Byrnes, Secretary of State
Date: January 5, 1946
Unsent letter to Secretary of State
James Byrnes January 5, 1946
At the time we were anxious for Russian entry into the Japanese War. Of course we found later that
we didn't need Russia there and the Russians have been a head ache to us ever since.
The excerpt from this letter refers to Truman's feelings at the July 1945 Potsdam Conference
about having Russia enter the Pacific war.
http://www.nuclearfiles.org/menu/library/correspondence/truman-harry/corr_truman_1946-01-05.htm

こちらは戦後に書かれた手紙だが、そこには「At the time（注：ポツダム会談当時） we were anxious for Russian
entry into the Japanese War. Of course we found later that we didn?t need Russia there and the Russians
have been a head ache to us ever since.」とある。
ポツダム会談の直前、アメリカは原爆実験に成功していた。だから、もし原爆で日本が降伏すると確信していたなら、
ソ連の参戦など熱望するわけがない。