Cooper and Braydens WW1 crossword

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Across
  1. 4. the first of the world wars
  2. 6. a group of african american soldiers that fought in ww1
  3. 7. a gun that can shoot bullets at a rapid speed
  4. 9. a fatal gas that the germans used in war
  5. 12. a vessel that is used for underwater travel
  6. 13. a place dug into the ground for cover during ww1
  7. 14. the U.S. president during ww1
Down
  1. 1. the people who fight during wars
  2. 2. one of the first countries to start using trenches
  3. 3. a fence that was used in ww1 to keep enemies out
  4. 5. A holiday celebrated in late december
  5. 8. a face wear meant to stop the inhalation of poison gas
  6. 10. a piece of the battlefield that no one went on
  7. 11. a boat that Germany used to attack other ships