World War I

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Across
  1. 3. The sinking of this ship led Americans to consider joining the war
  2. 6. The Archduke of Austria-Hungary who was assassinated
  3. 7. The French name for the Allies
  4. 8. This nation betrayed its alliance and fought for the other side
  5. 10. J.R.R. Tolkien and A.A. Milne saw combat in this battle
  6. 12. Longest battle fought on the Western Front
  7. 13. The USA's official policy at the beginning of the war
Down
  1. 1. The region of Southeast Europe that contains Serbia, Bosnia, and Bulgaria
  2. 2. The waterway that leads from the Mediterranean Sea to the Black Sea
  3. 3. Another name for the Holy Land/Palestine
  4. 4. Ethnic minority that wanted to create a nation for all members
  5. 5. The Western Front heavily featured ______ Warfare
  6. 9. The policy of expanding into other regions to gain wealth
  7. 11. This British explorer rallied the Arabs to fight against the Ottoman Empire