The mother of a US Army vet friend of mine is Japanese and she was taught that Japan treated the Flying Tigers deployment to Burma as preparation to a US sneak attack on the Japanese forces within China was the reason for Pearl Harbor. Given the nearly non-existent security involved in the deployment of 100 pilots, 200 ground crew, instructors and logistics train this is certainly plausible but is it true?
No, not really. There were several American Naval personnel who predicted the attack, Lord Mountbatten likewise did the same, and this was years before the attack.
"Ellis Zacharias sipped on his dry martini as he matched poker skills with a group that included a young naval attaché with the Japanese embassy.
Zacharias, a naval intelligence officer posted in Washington in the 1920s, was not only playing poker but also trying to get the espionage-minded Japanese officer to let slip some information about his country's plans in the Pacific. He restricted himself to just the one martini in order to maintain his edge. This probing for information was a mutual exercise, usually involving shrewd questioning by both men as they played each hand.
Revealing only enough information to keep the conversation going, Zacharias could absorb what he heard over time while maintaining his friendship with the young Japanese officer, who had a reputation as a gambler.
Some years later, Zacharias would use information gathered this way to warn his superiors that Japan, by then on the march across the Pacific Rim, would launch a surprise attack on the United States in the Pacific—on a Sunday morning.
The Navy ignored his warnings. But early on December 7, 1941—a Sunday morning—Japan suddenly attacked Pearl Harbor, Hawaii. It was an operation planned by Zacharias's old poker-playing partner, Isoroku Yamamoto, by then commander in chief of the Japanese fleet."
Sage Prophet or Loose Canon?