HSS

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Across
  1. 3. Land between warring nations' trenches
  2. 4. largest battleships ever built
  3. 8. new guns made for battle
  4. 10. Day of truce between Soldiers
  5. 12. Ourselves alone
  6. 13. Famous Boat the Germans Sank
  7. 14. Powder Keg of Europe
  8. 15. Famous German war plan
Down
  1. 1. Nation that first declared war
  2. 2. Serbian terrorist group
  3. 5. Middle east Empire
  4. 6. First battle where posion gas was used
  5. 7. Alliance between Germany,Austria-Hungary and Italy
  6. 9. first name of the guy whose death started WW1
  7. 11. Entered late in the war