World War one

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Across
  1. 1. Used to stop gas warfare
  2. 4. The country Germany wanted to attack America
  3. 10. A vehicle with tons of armor and large weapons
  4. 12. Long narrow ditch
  5. 13. Treaty that ended the war
  6. 15. When a country becomes friends with another country
Down
  1. 2. The assassination that started World War one
  2. 3. Soldiers had to cross to get to the other trench
  3. 5. German boats used in World War one
  4. 6. German leader
  5. 7. When a country selects people to go to war
  6. 8. Tsar of Russia in World War one
  7. 9. Enemy of the war
  8. 11. Media used to persuade people with false evidence
  9. 14. A shell used to clear large amounts of space