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The Zimmermann telegram (or Zimmermann note or Zimmermann cable) 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 United States entered World War I against Germany.
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 World War I. [1] The most commonly used codes were simple substitution ciphers. More important messages generally used ...
Print/export Download as PDF; Printable version; In other projects ... Zimmermann Telegram: Solved within days of transmission 1918 Chaocipher: Solved
A diplomatic cable, also known as a diplomatic telegram (DipTel [1] [2]) or embassy cable, is a confidential text-based message exchanged between a diplomatic mission, like an embassy or a consulate, and the foreign ministry of its parent country. [3] [4] [5] A diplomatic cable is a type of dispatch.
Admiral Sir William Reginald Hall KCMG CB (28 June 1870 – 22 October 1943), known as Blinker Hall, was the British Director of Naval Intelligence (DNI) from 1914 to 1919. . Together with Sir Alfred Ewing he was responsible for the establishment of the Royal Navy's codebreaking operation, Room 40, which decoded the Zimmermann telegram, a major factor in the entry of the United States into ...
The word Arizona was not in the German codebook and had therefore to be split into phonetic syllables. Partially burnt pages from a World War II Soviet KGB two-part codebook In cryptology , a code is a method used to encrypt a message that operates at the level of meaning; that is, words or phrases are converted into something else.
Print schedule: Starting Sunday, Oct. 6, the Star-Telegram will publish print newspapers on Sundays, Wednesdays and Fridays. The papers will be delivered by the U.S. Postal Service, starting Oct. 9.
1917 – Zimmermann telegram intercepted and decrypted, advancing U.S. entry into World War I; 1919 – Weimar Germany Foreign Office adopts (a manual) one-time pad for some traffic; 1919 – Edward Hebern invents/patents first rotor machine design—Damm, Scherbius and Koch follow with patents the same year