Secret warfare: the battle of codes and ciphers

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Acropolis Books, 1973 - Language Arts & Disciplines - 187 pages
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Contents

List of Figures
9
Acknowledgements
10
Introduction
11
The Beginnings
13
The Renaissance
18
Elizabethan England
30
The Race for Security
35
Codebreakers
43
Operation North Pole
97
The Purple Machine
109
Eyes in the Desert
123
Death in the Sky
132
The Man Called Lucy
140
DDay
152
Message to Moscow
163
What Next?
173

The Zimmerman Telegram
47
ADFGX
61
Codes of the Underworld
72
To Catch a Spy
83
Sources and Bibliography
177
Index
181
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