WWI CROSSWORD

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Across
  1. 6. The alliance of Britain, France, and Russia.
  2. 7. A policy of building up strong armed forces to prepare for war.
  3. 8. The name of the alliance between Germany, Austria-Hungary, and the Ottoman Empire.
  4. 11. President of the United States during World War I.
Down
  1. 1. The treaty that officially ended World War I.
  2. 2. The group of nations formed after the war to promote peace.
  3. 3. The assassination of this archduke sparked World War I.
  4. 4. The type of warfare characterized by long, dug-out systems.
  5. 5. A secret message from Germany to Mexico intercepted by the British.
  6. 9. New weapon introduced in WWI that caused suffocation and burns.
  7. 10. The ship sunk by German U-boats that angered Americans.