Pierre's World War 1 Cross Word

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Across
  1. 2. Soliders level in the army
  2. 4. Archduke Franz Ferdinand
  3. 7. A major military attack
  4. 10. A military monoeurve
  5. 12. Unoccupied area
  6. 14. Artillary fires what?
  7. 17. Name given to the rough living space
  8. 18. The areas of countrys where no fighting took place but civilians contributed to the war effort
Down
  1. 1. Soldiers who fight on foot
  2. 3. Spying,Gathering Information
  3. 5. Projectile shot out by exploding artillary shells
  4. 6. patrols Practice of keeping guard at night
  5. 8. Boards which were laid down on the trench floor
  6. 9. Alliance 3 countrys uniting
  7. 11. Most exposed foot
  8. 13. What goes into a gun
  9. 15. Shaped projectile that flies through the water and blows up other ships
  10. 16. A type of German submarine