world war 1

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Across
  1. 2. a knife used on the end of a rifle
  2. 3. artillery used for trench warfare
  3. 4. 600 rounds per minute used 40 riflemen
  4. 8. ecorting merchant ships to defend from uboats
  5. 10. famous american pilot
  6. 12. used to filter gas
  7. 14. increased tension over territories and boundaries
  8. 15. used for in air combat
  9. 19. million people died during ww1
  10. 20. fighter pilot who shoots down 5 or more planes
  11. 21. plan for world peace
  12. 23. a bomb used to blow enemies
  13. 24. big metal machines
  14. 27. a long narrow ditch used for cover
  15. 28. U.S.A France great Britian and the Russian empire
  16. 29. risked their lives to report ww1
  17. 30. big aircraft used for spying
  18. 31. june 28 1914
  19. 32. assassinated which caused world war 1
  20. 33. intensified rivalries between nations
Down
  1. 1. a boat that sinks underwater and bombs ship
  2. 4. the belief or desire of government
  3. 5. gas used in trench warfare
  4. 6. law requiring men to register for ww1
  5. 7. german leader
  6. 9. used to burn enemies
  7. 11. respiratory system
  8. 13. used to choke its victims to death
  9. 16. contained german empire and austria hungary
  10. 17. treaties to defend one another in event of war
  11. 18. black war hero
  12. 22. signed June, 28 1919
  13. 25. name of German submarine
  14. 26. a missile used to sink boats