Progressive crossword puzzle

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Across
  1. 3. War between spain and America
  2. 5. allows voters to vote directly for senator
  3. 7. amendment allowing federal income tax
  4. 9. supporting your countries interests
  5. 12. the idea that a country should always be ready to use military force
  6. 13. made passage around South America simpler
  7. 14. to take part of or all of a country
  8. 15. Written by Upton Sinclair about health and safety issues in the meat packing industry
  9. 16. equality for everyone trading with china
  10. 17. country using military or diplomacy to gain power
  11. 18. a ship sunk by German U-boats causing US military involvement in WWI
Down
  1. 1. writers who wrote about injustices in society
  2. 2. womens sufferage amendment
  3. 4. Telegraph sent to Mexico from Germany proposing an alliance
  4. 6. Country using financial power for diplomatic gain
  5. 8. Progressive party founded by FDR
  6. 10. the first worldwide intergovernmental organisation whose principal mission was to maintain world peace
  7. 11. prohibition amendment