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 …

2014年5月21日 · The British cryptographic office known as “Room 40” decoded the Zimmermann Telegram and handed it over to the United States in late-February 1917. By March 1, its …

2025年1月4日 · Zimmermann Telegram, coded telegram sent January 16, 1917, by German foreign secretary Arthur Zimmermann to the German minister in Mexico. The note revealed a …

2022年8月22日 · In January of 1917, British cryptographers deciphered a telegram from German Foreign Minister Arthur Zimmermann to the German Minister to Mexico, von Eckhardt, offering …

2021年6月2日 · In January 1917, British cryptographers deciphered a telegram from German Foreign Minister Arthur Zimmermann to the German Minister to Mexico, Heinrich von …

The telegram was considered perhaps Britain’s greatest intelligence coup of World War I and, coupled with American outrage over Germany’s resumption of unrestricted submarine warfare, …

In January 1917, German foreign secretary Arthur Zimmermann dispatched a secret letter to Heinrich von Eckardt, the German minister to Mexico. The note informed Eckardt that if the …

On Jan­uary 17, 1917 British signals intelligence intercepted and decrypted a coded German telegram from German Foreign Secretary Arthur Zimmermann that was intended for …

2023年7月7日 · A lesson plan about the Zimmermann telegram is online at www.archives.gov/education/lessons/zimmermann/. The telegram is also included in a list of …

Hoping to divert America’s attention away from Europe, the German foreign minister, Arthur Zimmermann (1864–1940), proposed a Mexican-Japanese-German alliance to fight the United …