Crossword Relating To World war 1

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Across
  1. 2. Joined the allies in 1917
  2. 6. The Russian's emperor during world war 1
  3. 8. to not breath in tocxis
  4. 10. Getting prepared and troops ready for the war
  5. 12. The German's emperor in world war 1
  6. 14. The area of two enemy trenches
  7. 16. A defensive tool to protect the trenches
  8. 18. Germany's promise of full support to Austria-Hungary if they go to war
  9. 19. A heavy bloody battle fought in France
  10. 20. large guns that fired shells
Down
  1. 1. Group of countries which include Germany ,Austria
  2. 3. Another word for a soldier injured ,killed, or missing during the war
  3. 4. An agreement that ends the war
  4. 5. A ship you can only use underwater
  5. 7. Weapon designed to be able to go across barbed wire and can shoot
  6. 9. A condition soldiers have after a constant artillery fire
  7. 11. Information used for the public during world war 1
  8. 13. A long skinny ditch that soldiers fought from in to protect themselves
  9. 15. Battle where Italy had suffered a major defeat
  10. 17. A empire that joins the centrals power