World War 1

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Across
  1. 2. Fast-flying war machine
  2. 6. Soldiers lived and fought in these
  3. 7. Soldiers used this to dig trenches
  4. 8. Country that fought with Britain and France
  5. 9. Type of fighting in long ditches
  6. 12. Country invaded by Germany at the start
  7. 14. U.S. president during the war
  8. 15. Flying machine used in war
  9. 20. Peace agreement signed after war
  10. 21. Food supplies given to soldiers
  11. 24. Country that started the war
  12. 25. Secret message that angered the U.S.
  13. 28. City where peace treaty was signed
  14. 29. Archduke whose death started the war
  15. 30. German underwater boat
Down
  1. 1. Group of ships sailing together
  2. 3. Country that left war after revolution
  3. 4. Famous ship sunk by a submarine
  4. 5. Wrote peace plan with 14 points
  5. 10. Worn on head for protection
  6. 11. Large gun used in battles
  7. 13. British leader during the war
  8. 16. Country that fought with Germany
  9. 17. Country that joined war later
  10. 18. Country where many battles were fought
  11. 19. German leader during the war
  12. 22. Battle with many deaths in France
  13. 23. Soldiers marched in this
  14. 26. Deadly gas used in battle
  15. 27. Soldiers wore this to protect from gas