Civil war cross word puzzle

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Across
  1. 2. general of confederated army
  2. 6. affair when confederates on Mexican boats caught and prisoned by the union
  3. 7. formed of states the seceded from the U.S.
  4. 9. proclamation that set slaves free
  5. 10. north placed these to stop south from trading with other countries
  6. 12. killer of Abraham Lincoln
  7. 13. the president during the civil war
  8. 14. placed by the north on imported goods
  9. 15. plan to stop confederates from going to foreign countries
Down
  1. 1. 18 president of the U.S. after Lincoln
  2. 3. states bordering slave and free states
  3. 4. states that did not secede during the civil war
  4. 5. president of the confederate army
  5. 8. war fought between the union and the confederate
  6. 11. called to serve in the army