Civil war crossword puzzle

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Across
  1. 2. a force that opposes or slows motion
  2. 4. to firmly fix or establish
  3. 6. to give a good reason for something; to show something is right or reasonable
  4. 8. a river or stream that flows into a larger river
  5. 14. war a war in which groups of people from the same country fight against each other
  6. 15. an order issued by President Lincoln in 1863 that freed all the slaves in the Confederate stat
  7. 16. the act of formally separating from or leaving an organization or government
  8. 18. war strategy of destroying the enemy's means of survival
  9. 19. a payment made (often by authorities) as a reward
  10. 20. to formally withdraw from membership in an organization or group
Down
  1. 1. a place where weapons are kept
  2. 3. concept that laws should be made by each state and not by the federal government
  3. 5. promissory notes issued during the Civil War, with green ink giving them their nickname
  4. 7. a person who is running from something, usually legal authorities
  5. 9. to enroll in a group such as the military
  6. 10. to strengthen or support
  7. 11. a person who suffers or dies because of his or her beliefs or actions
  8. 12. a person injured, killed, or missing during a war, accident, or disaster
  9. 13. slave-owning states that stayed in the U.S.
  10. 17. a careful plan for solving a problem or achieving a goal