WWI Review

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Across
  1. 4. Country whose helmets you could probably eat out of (2 words)
  2. 5. The alliance made up of Germany, Austria-Hungary, and Italy (2 words)
  3. 9. Holes in the ground where most of the war was fought
  4. 10. War where everyone is involved, not just soldiers (2 words)
  5. 12. These flowers are a symbol of WWI veterans
  6. 14. Area between two country's trenches (3 words)
  7. 15. Large guns used to bombard enemy defenses with explosive shells
  8. 17. Germany tried to convince this country to sneak-attack the USA
  9. 18. Armored vehicle used to drive through enemy defenses
  10. 20. These quick-firing guns were strictly defensive weapons in WWI (2 words)
  11. 21. Keeps pools clean but can be turned into a deadly gas
  12. 22. Country that Gavrilo Princip was trying to free by shooting Archduke Ferdinand
Down
  1. 1. WWI would have been small-potatoes without these deals between countries
  2. 2. What German U-Boats used to sink enemy ships
  3. 3. Two-winged style of WWI aircraft
  4. 6. British ship that was sunk with 120+ Americans on board
  5. 7. The Schlieffen Plan called for quickly knocking out this country
  6. 8. An obsession with a country's military
  7. 11. US Presdient during WWI; came up with the 14 point plan (2 words)
  8. 13. Nickname of German flying ace Manfred von Richtofen (2 words)
  9. 16. This country left the war early due to a Communist revolution
  10. 19. This deal went into effect on 11/11/18