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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.
Zimmermann Telegram: Solved within days of transmission 1918 Chaocipher: Solved 1918–1945 Enigma machine messages Solved (broken by Polish and Allied cryptographers between 1932 and 1945) 1939 D'Agapeyeff cipher: Unsolved 1939–1945 Purple cipher machine messages Solved (broken by Allied cryptographers in 1940) 1941 Lorenz SZ42 machine ...
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.
Arthur Zimmermann (5 October 1864 – 6 June 1940) was State Secretary for Foreign Affairs of the German Empire from 22 November 1916 until his resignation on 6 August 1917. His name is associated with the Zimmermann Telegram during World War I .
Decrypting a coded message is a little like trying to translate a document written in a foreign language, with the task basically amounting to building up a "dictionary" of the codegroups and the plaintext words they represent. One fingerhold on a simple code is the fact that some words are more common than others, such as "the" or "a" in English.
Zimmermann Telegram, 1917 German plan for military alliance with Mexico against U.S. War Plan Black, U.S. war plans against Germany; 1901, novel about a German invasion of U.S. 1920: America's Great War, novel about a German invasion of U.S. The Invasion of the United States Series, juvenile novels about a German invasion of U.S.
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
Arthur Zimmermann, the German foreign minister, sent the Zimmermann Telegram to Mexico on January 16, 1917. Zimmermann invited Mexico (knowing their resentment towards America since the 1848 Mexican Cession) to join in a war against the United States if the United States declared war on Germany. Germany promised to pay for Mexico's costs and to ...