history crossword puzzle (section 2)

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Across
  1. 2. number of people killed or injured
  2. 3. many soldiers did not have this and got sick
  3. 4. warships that were covered with iron
  4. 7. a person who enlists in the army
Down
  1. 1. a bullet with a hallow base
  2. 5. a grooved barreled gun that causes the bullet to spin
  3. 6. a person in the army