Dis Stalin have any kids?

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Across
  1. 3. The USA got into a war with them on December 11, 1941
  2. 5. A type of very bad lung disease
  3. 6. This happened in war when the enemy defeats you.
  4. 8. 2+2-3+7-4.
  5. 9. You go here when you do something really bad.
Down
  1. 1. We need it so we can have lights.
  2. 2. Was the first son of Stalin
  3. 4. The first wife of Stalin
  4. 7. Rescuing a child in need.