The breaking of the Zimmerman telegram and the entry of the United States into the First World War. The interception of Soviet communications in the 1920s and the police raid against the Russian Trade Delegation.
Stephen Twigge Book order (chronological)
The Spy Toolkit
- 143 pages
- 6 hours of reading
A revealing, sometimes sinister and often hilarious look at the gadgets and devices devised to help spies in their profession.