Appendix B. Summary of Diplomatic Messages July – November 1941

After 24 November 1941, events in U.S.-Japanese diplomatic negotiations moved very swiftly to their climax on 7 December. A number of important diplomatic messages passed between Tokyo and Washington between July and November; these are summarized below. These early messages and those exchanged after 24 November which have been selected for inclusion in this appendix are so revealing that it is easy to lose sight of the fact that U.S. officials were often reading these messages at about the same time as the Japanese diplomats. The "War Warning" messages sent by OPNAV beginning on 24 November have also been included in this appendix to insure that the reader fully appreciates their ...

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