Question

what was the immedate cause of the u.s entry into world war 1

Answer 1

https://answers.yahoo.com/question/index?qid=20080328131330AAguQJx

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Answer 2

The United States' entry into World War I came in April 1917, after two and a half years of efforts by President Woodrow Wilson to keep the United States neutral during World War I. Americans had no idea that war was imminent in Europe in the summer of 1914, and tens of thousands of tourists were caught by surprise. The U.S. government, under Wilson's firm control, called for neutrality "in thought and deed".[1] Apart from an Anglophile element supporting the British, American public opinion went along with neutrality at first. The sentiment for neutrality was strong among Irish Americans, German Americans and Swedish Americans,[2] as well as among church leaders and women. However, the citizenry increasingly came to see the German Empire as the villain after news of atrocities in Belgium in 1914, and the sinking of the passenger liner RMS Lusitania in 1915 in defiance of international law. Wilson made all the key decisions and kept the economy on a peacetime basis,