World War I

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Across
  1. 1. Soldiers regularly changed into dry _____ to prevent the onset of trench foot.
  2. 6. The city in which the spark of the war took place was ________.
  3. 8. A serious case of trench foot could lead to ________.
  4. 9. Made with harmful chemicals, ___ was a chemical weapon intended to be inhaled by opposing soldiers.
  5. 10. The system of _________ between countries led to the involvement of many countries in the war and a long chain reaction.
Down
  1. 2. Germany's unrestricted ________ warfare pushed America towards getting involved in the war.
  2. 3. A _______ nationalist assassinated Archduke Franz Ferdinand and his wife Sophie.
  3. 4. _________ was a disease experienced by many WWI soldiers that caused severe diarrhea and pain.
  4. 5. Archduke _____ Ferdinand was assassinated, which sparked the war.
  5. 7. Annoying ____ invaded the trenches and stole soldiers' food.