dec 1, 1913 - The United States remained neutral from 1914 to 1917, but entered WWI after Germany resumed unrestricted submarine warfare and sent the Zimmerman Telegram. Officially declaring war on April 6, 1917, the U.S. mobilized over 4 million troops, helping turn the tide for the Allies and tipping the scales toward victory
Added to timeline:
Date:
dec 1, 1913
Now
~ 112 years ago