WW1

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Across
  1. 3. poisonous gas
  2. 5. german U boat
  3. 8. country germany broke neutrality with this country
  4. 10. principles for peace
  5. 12. over 400 miles
  6. 14. world organization to keep the peace
Down
  1. 1. length of the war
  2. 2. able to vote after war
  3. 4. Great Britain, France, Russia, Italy and Japan
  4. 6. US joined the Allied Powers
  5. 7. president during WW1
  6. 9. Germany, Austria-Hungary and Ottoman Empire
  7. 11. secret diplomatic communication from German foreign office
  8. 13. member of US Army or Marines