World War 1

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Across
  1. 2. Who became a popular propaganda figure?
  2. 3. Approximately how many different poisonous gases were used?
  3. 10. In what continent did most of the fighting take place?
  4. 11. How many empires collapsed after WW1?
  5. 13. What were tanks initially called?
  6. 14. What language stopped being taught in America?
  7. 15. Who was the first to use gas against enemy troops?
Down
  1. 1. What was the main country that caused WW1?
  2. 4. Where did solider stay within during the war?
  3. 5. The Turtle was the first military ______?
  4. 6. What type of bird famously carried messages?
  5. 7. What power had the most significant development?
  6. 8. Who was skilled at intercepting and solving Allied codes?
  7. 9. What animal was used to carry messages in the trenches?
  8. 12. What country was part of an alliance with Britain and Russia?