Pearl Harbor 2.0 -- John Koster, Time
The “infamy” of December 7, 1941, is deeper than most Americans have ever imagined. The Japanese attack on Pearl Harbor was almost certainly the result of a Soviet plot—“Operation Snow”—carried out by Harry Dexter White, a figure of enormous influence in the Roosevelt administration and a known Soviet spy.
Americans remember Pearl Harbor as the work of a Japanese military machine hell-bent on a war of conquest. The truth is more complicated.
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My Comment: The US embargo certainly did not earn any friends in Japan .... but was such a policy the main reason why Japan decided to go to war against the U.S. .... I have my doubts. From my understanding there were numerous reasons on why Japan wanted to go to war, with the embargo and calls for Japanese withdrawal being one of many.