When did the united states get involved in ww1?
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On what date did the US formally get involved in WWI?
April 6, 1917
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What event prompted the US to get formally involved in WWI?
Sinking of American merchant ships sinking American merchant ships
American entry into World War I
https://en.wikipedia.org/wiki/American%20entry%20into%20World%20War%20I
The American entry into World War I came in April 1917, after more than two and a half years of efforts by President Woodrow Wilson to keep the United States out of the war.
American entry into World War I
Apart from an Anglophile element urging early support for the British and an anti-Tsarist element sympathizing with Germany's war against Russia, American public opinion reflected that of the president: the sentiment for neutrality was particularly strong among Irish Americans, German Americans, and Scandinavian Americans,[1] as well as among church leaders and women in general.
American entry into World War I
Germany also made a secret offer to help Mexico regain territories lost in the Mexican–American War in an encoded telegram known as the Zimmermann Telegram, which was intercepted by British intelligence. Publication of that communique outraged Americans just as German submarines started sinking American merchant ships in the North Atlantic. Wilson then asked Congress for "a war to end all wars" that would "make the world safe for democracy", and Congress voted to declare war on Germany on April 6, 1917.[4] U.S. troops began major combat operations on the Western Front under General John J. Pershing in the summer of 1918.
American entry into World War I
When WWI began, most of the American people and the American president, Woodrow Wilson, wanted to stay out of it. However, US sentiment changed after learning that Germany offered to help Mexico regain land that it had lost to America in the Mexican-American War, and German submarines started sinking American merchant ships. President Wilson then asked the US Congress for "a war to end all wars" and Congress declared war on Germany on April 6, 1917. American troops began combat operations on the Western Front of WWI in the summer of 1918.