World War 1 Crossword

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Across
  1. 7. building up militaries to protect colonies overseas
  2. 10. the US refused to join
  3. 11. on may 17, 1915 they sank the British passenger ship; the Lusitania
  4. 12. men 21-30 were required to register to be randomly selected to service
  5. 14. declares war on Serbia
  6. 18. he assassinated Franz Ferdinand
  7. 20. extreme pride in one's country
Down
  1. 1. submarine
  2. 2. competition for colonies as a source of raw materials
  3. 3. WW1 ends with this
  4. 4. allies; Great Britain, France, Russia
  5. 5. german politicians who signed the Treaty of Versailles
  6. 6. Princip is a member of this group
  7. 8. where was Franz Ferdinand assassinated
  8. 9. Wilson's plan for lasting world peace
  9. 13. central powers; Germany, Austria-Hungary, Italy
  10. 15. was a soldier in WW1
  11. 16. a direct result of the Alliance system
  12. 17. caused the US to enter WW1
  13. 19. alliances formed with other countries to protect each other