Entry
The United States’ entry into the war — The American declaration of war on Germany, 6 April 1917
Unrestricted submarine warfare and the Zimmermann telegram threw America into the war: “the world must be made safe for democracy.” The doughboys would cross — and in July, in Paris: “Lafayette, we are here!” (Editorial synthesis)
The United States’ entry into the war took place on 6 April 1917. (source: Sénat)
The United States’ entry into the war ended in the New World’s resources and soon two million men in the balance. (source: Sénat and Ministère des Armées)
Answers are drawn from a corpus established and verified by an editorial team; each one shows its source.
When a piece of information is not in that collection, the encyclopedia says so rather than inventing it — that principle is what makes every answer it does give trustworthy.