World War I

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Across
  1. 2. British boat carrying American passengers
  2. 7. organization of over 40 countries that agreed to negotiate disputes and take common action against aggressors
  3. 9. This country entered the war in 1917
  4. 10. alliance of Germany and Austria-Hungary
  5. 12. ended WWI and imposed harsh conditions on Germany
  6. 13. A method of fighting where you dig a trench and launch artillery at your opponents
Down
  1. 1. Heir to the Austro-Hungarian throne
  2. 3. Type of boat that can go under water
  3. 4. deadlock in which neither side is able to defeat the other
  4. 5. Alliance of France, Britain, and Russia
  5. 6. Country blamed for the death of Franz Ferdinand
  6. 8. Technological advances from the previous decades lead to
  7. 11. channeling of a nation’s entire resources into a war effort