INEVITABLE Word search

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Across
  1. 6. Used to rapidly dig into spaces
  2. 7. A Moving weapon used for fast protection
  3. 8. allow gunners to see their shots
  4. 9. Used for defense obstacles
  5. 10. Used to cross over muddy places
Down
  1. 1. Food for on the go
  2. 2. used to break the stalemate of trench warfare
  3. 3. Deadly when inhaled
  4. 4. Used to destroy trenches
  5. 5. Way to communicate from land to sea