#OnThisDay in 1917, the U.S. declared war on Germany and entered World War I 🇺🇸⤵ The United States entered World War I on April 6, 1917, only four days after President Woodrow Wilson’s speech asking Congress for authorization. In the summer of 1917, a small force of U.S. troops was sent to Europe, where fighting first began three years prior. Meanwhile, training camps throughout the U.S. were rapidly filling out with volunteers and draftees. By the fall, divisions of newly trained soldiers beg