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American Signal Intelligence in Northwest Africa and Western Europe by George F. Howe

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Appendix G. U. S. Navy Department Agreement with the Admiralty

Op-20-G/jac

October 1, 1942

MEMORANDUM FOR OP-20:

Subject: Collaboration of U.S. and British Radio Intelligence Organizations on Japanese and German Projects.

  1. After thorough discussion of U.S. and British radio intelligence problems in the Pacific and in the Atlantic, Commander Travis, R.N., has made the following proposals which, I understand, have the approval of the Admiralty:

    Japanese

    • (a) The British to abandon naval cryptanalysis at Kilindini and retain there only an exploitation unit which will read traffic from recoveries supplied by other units, and supply to these other units any code or other recoveries obtained in the course of this reading.

    • (b) The British to disband the British-Australian ...

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