U.S AND WWI

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Across
  1. 4. Germany's ___________ sunk the Lusitania and pushed them into thinking of war?
  2. 6. what was the name of the treaty that ended the war?
  3. 8. what was the U.S at the beginning of the war?
  4. 9. world war I was known as the first war as well as _________.
Down
  1. 1. who was the president of the united states during WWI?
  2. 2. what was the country that finished up the war?
  3. 3. from what country was the guy that killed the archduke?
  4. 5. what country did Germany try to get against the U.S.?
  5. 6. Italy, Germany, and Austria formed an alliance named?
  6. 7. what country did WWI begin on?