“No account of the stirring episodes leading up to our entry into the World War can be considered complete without at least a reference to the one in which the Zimmermann telegram played the leading role.”
War Department Office of the Chief Signal Officer
(1938 study)
January 16 2023 — On January 16 1917, British code breakers intercepted an encrypted message from German foreign secretary Arthur Zimmermann intended for Heinrich von Eckardt, the German ambassador to Mexico. The decryption of the Zimmermann Telegram is widely described as the most significant intelligence triumph for Britain during World War I. The story demonstrates that SIGINT can influence the course of History. Follow us on Twitter: @Intel_Today
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