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6/28/1914
Archduke Franz Ferdinand was assassinated by a Serbian nationalist and Austrians target their anger toward Serbia and the U.S was not involved. -
8/4/1914
Great Britain and France declare war on Austria-Hungary and the U.S will support with supplies -
5/7/1915
French and British troops disrupt the Schlieffen Plan by launching a major counter-offensive against the invading German. the U.S is not helping because they wont to be neutral