The importance of codebreaking and signals intelligence in the diplomacy and military operations of World War II is reflected in this study of the cryptanalysts, not only of the US and Britain, but all the Allies. The codebreaking war was a global conflict in which many countries were active. The contributions reveal that, for the Axis as well as the Allies, success in the signals war often depended upon close collaboration among alliance partners.
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RUSI Journal Dec. 99
"A newcomer to the subject should not expect to learn all about it from this volume but a reasonably experienced one will gain several very useful insights and the book can be thoroughly recommended to such a constituency."
International Intelligence History Study Group Newsletter- " the authors suceed very well in depicting vividly the turgid, claustrophobic, and conspiratorial atmosphere which prevailed during those fateful years"
Stone and Stone Second World War Books (Internet site)
"Despite some unevenness - several of these pieces are excellent while a couple are rather weak - in sum this is a terrific collection of Sigint essays."
Cryptologia, Vol 24, No 2, April 2000
"The ten studies in this informative collection not only describe British and American cryptanalytic efforts but also the work of codebreakers in Australia, China, France, Hungary, Finland, Italy and Japan."
The Journal of Military History, Vol 64, No 3, July 2000
"Volumes of edited essays frequently are marred by a lack of continuity or unevenness in the scholarship of individual essayists. This volume is a refreshing exception. ... While some essays will impress informed readers as more original than others, it stands to reason that these ten essays collectively constitute a fine volume. Focused and scholarly, it is a valuable addition to the Frank Cass Publishers series on Studies in Intelligence.