Answer:In early April 1917, with the toll in sunken U.S. merchant ships and civilian casualties rising, Wilson asked Congress for “a war to end all wars” that would “make the world safe for democracy.” A hundred years ago, on April 6, 1917, Congress thus voted to declare war on Germany, joining the bloody battle—then optimistically called the “Great War.”“The U.S. declaration of war, in essence, was a recognition of the fact that Germany had chosen to impose a very risky gamble on the U.S.—risky for Germany, but the only way they thought they could obtain the victory they needed at home."
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