British Foreign Affairs Office, London, February, 23rd 1917. In the afternoon, Arthur Balfour, the foreign secretary of the ...

But as the war unfolded in Europe, an intercepted telegram sent by the German Foreign Secretary, Arthur Zimmermann, to the Mexican government inflamed the U.S. public opinion and was one of the ...

After the Zimmermann telegram incident in early 1917, however, in which Germany promised Mexico U.S. territory in return for helping them in the war, America entered the conflict. "The April 1917 ...

The United States entered World War I after repeated threats from Germany with a declaration of war by Congress on this day ...

Spying and mishandled secrets have unintended consequences. Our current “document debacle” sent me back to the late Barbara Tuchman’s book, the “Zimmermann Telegram,” and how we stumbled ...