In 1898 the United States entered the world stage, replacing Spain as a major power following a decisive victory. A hundred years ago today an event occurred that forever ensured this country’s participation in world affairs. On 3 March 1917 German Foreign Secretary Arthur Zimmermann acknowledged the German Empire was conspiring to bring Mexico into war with the United States. The item of the hour was the Zimmermann Telegram. A prior post recounts the details from Herbert Yardley’s book:
A famous code breaking case of the time, and one that had historical implications, was one that never came the way of the Black Chamber. This was the famous Zimmerman cable message. At the time, Mexico was still smarting from General Pershing’s punitive raid into Mexican territory, and General Carranza, the President of Mexico decided to throw in his lot with the Germans:
The reader will recall the sensational Zimmermann-Carranza note which the President read before Congress just before we entered the war, the note in which Zimmermann, German Minister for Foreign Affairs, promised Mexico financial aid and the states of New Mexico, Texas and Arizona if she declared war against the United States. This telegram was deciphered by the British Cryptographic Bureau early in 1917, just before we entered the war.
Yardley, Herbert O.. The American Black Chamber (Bluejacket Books) (Kindle Locations 1606-1609). Naval Institute Press. Kindle Edition.
The United States declared war on Germany in April 1917, and subsequently sent approximately two million troops to France, resulting in “about 320,000 casualties: 53,402 battle deaths.” Twenty-four years later the United States entered World War Two, an almost unavoidable consequence of the earlier war. The consequences of the Zimmermann telegram shape the American landscape to this day.