World War 1

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Across
  1. 4. What was a new invention used in the war?
  2. 5. What was the name of the Arch Duke of Austria-Hungary?
  3. 9. A popular German submarine
  4. 10. Who shot down the Red Baron?
  5. 12. A plan devised by the Germans
  6. 17. Canada's Primeminster During WWI
  7. 20. A US Cruise ship
Down
  1. 1. Wilhelm II The Leader of Russia During WW1
  2. 2. Nicholas II The leader of Germany
  3. 3. Who assassinated Franz Ferdinand
  4. 6. British Battleship
  5. 7. Who were the Allies against in the war?
  6. 8. A mental disorder caused by noise while in the trenches
  7. 11. What war used a lot of poison Gas?
  8. 13. Aces are pilots who have taken down _ airplanes
  9. 14. A popular Canadian Ace
  10. 15. How many years did the war last?
  11. 16. A disease that causes the feet to rot.
  12. 18. Rotting of the gums
  13. 19. A hole in the side of a trench