A battle - wear the hat of the soldier

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Across
  1. 4. name of the blindfolded war
  2. 6. preplanned prompt to attack
  3. 7. need of an hour, over sympathy
  4. 9. way to guard your respiratory zone
  5. 10. one of the mandatory uniforms for soldiers
Down
  1. 1. be a whistleblower
  2. 2. one of the weapons used
  3. 3. not recommended for soldiers
  4. 5. give up for harmonious living
  5. 8. trenches to protect