World War 1

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Across
  1. 3. Agreement that ended WW1 fighting
  2. 4. A major and deadly battle in 1916
  3. 6. British ship sunk by German U-boat
  4. 7. Site of one of the IonMustardttles in WW1
  5. 10. German submarine used to attack allied shipping
  6. 13. Deep ditches used in WW1 warfare
  7. 14. U.S President during WW1
  8. 15. First name of Princip, the assassin of Archduke Franz Zeppelind
Down
  1. 1. Airship used by Germany for bombing raids
  2. 2. Powers, including Germany, Austria-Hungary
  3. 5. A deadly gas used in chemical warfare
  4. 8. Land Between Trenches
  5. 9. Nickname for American Infantrymen in WW1
  6. 11. The coalition including Britain, France, and Russia
  7. 12. First name of the archduke whose assassination sparked WW1