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