World War I cryptography
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With the rise of easily intercepted wireless telegraphy, codes and ciphers were used extensively in World War I. The decoding by British Naval intelligence of the Zimmermann telegram helped bring the
Zimmermann telegram as decoded by Room 40
Zimmermann telegram
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The Zimmermann telegram was a secret diplomatic communication issued from the German Foreign Office on January 17, 1917, that proposed a military contract between the German Empire and Mexico if the U
World War I cryptography
…of easily intercepted wireless telegraphy, codes and ciphers were used extensively in World War I. The decoding by British Naval intelligence of the Zimmermann telegram helped bring the United States into the war. Trench codes were used by field armies of most of the combatants (Americans, British, French, German) in…
The Zimmermann telegram as it was sent from Washington, D.C., to Ambassador Heinrich von Eckardt, the German ambassador to Mexico.
The Mexican Telegraph Company building in Galveston through which the Zimmermann telegram was relayed
The telegram, completely decrypted and translated