World War 1

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