Pearl Harbor Redefined: USN Radio Intelligence in 1941
Brand: University Press of America

Pearl Harbor Redefined: USN Radio Intelligence in 1941

  • Publish Date: 2001-11-14
  • Binding: Paperback
  • Author: Timothy Wilford

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This book redefines the Pearl Harbor controversy through a study of radio intelligence as practiced by the United States Navy (U.S.N.) in 1941. Newly released primary documents, supported by secondary historical and technical accounts, explain the effectiveness of U.S.N. radio intelligence in terms of its principal activities in 1941: cryptanalysis, traffic analysis and intelligence reporting. This evidence also demonstrates the extent to which the U.S.N. exchanged intelligence with its Allied counterparts. U.S.N. radio intelligence penetrated the vast expanses of the Pacific, permitting the partial reading of Japanese naval messages and the tracking of Japanese vessels. In the period preceding the Pearl Harbor attack, radio intelligence provided the U.S.N. with foreknowledge of Japan's operations in the North Pacific, although Washington failed to provide its Hawaiian commanders with adequate forewarning. Washington's response can now only be explained in terms of gross neglect or careful design, rather than complete surprise.

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