World War I people to know

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Across
  1. 4. One of the major allied nations declared war
  2. 8. Germany offered Mexico a deal if they entered the war against the U.S. in 1917
  3. 11. Number of countries that join the war in 1914
  4. 12. despite rivalry with Germany they stayed neutral
  5. 14. tried to keep the U.S. out of the war
Down
  1. 1. committee on public information
  2. 2. boats that can be used underwater
  3. 3. entered the war in 1917
  4. 5. his assassination led directly to WWI
  5. 6. world organization to keep the peace
  6. 7. A ditch dug in the ground to protect soldiers at war
  7. 9. drafting men into the army
  8. 10. glorifying of war
  9. 13. name for U.S. soldiers in WW I