World War One

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Across
  1. 2. To prepare troops for war
  2. 6. The assassin of Archduke
  3. 9. Location of a major naval battle in WWI
  4. 11. Message from Germany to Mexico intercepted by Britain
  5. 12. Russian communist revolutionaries
  6. 13. Conference that negotiated the terms of peace
  7. 14. Deadly chemical weapon used during WWI
  8. 15. Policy Aggressive military buildup
  9. 17. Who helped the Allies by providing fresh troops
  10. 18. Underwater explosives used to blockade ports
  11. 19. What was redrawn to create new countries after the war
Down
  1. 1. Powerful warships used by Germany and Britain
  2. 3. Agreements between nations for mutual defense
  3. 4. Assassinated Archduke
  4. 5. Belgium's stance at the start of WWI
  5. 7. Type of warfare Germany used to sink Allied ships
  6. 8. Compensation that Germany had to pay
  7. 10. Media used to sway public opinion in favor of the war
  8. 12. Germany's promise to Austria
  9. 16. Large armored vehicles used in WWI