crossword puzzle key

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Across
  1. 6. forge The Valley Forge encampment lasted six months
  2. 7. major naval battle
  3. 8. mountain range rising along the Tennessee
  4. 10. the largest amphibious invasion
  5. 12. largest dessert
  6. 14. the first president of the United States
  7. 15. supreme law of us
Down
  1. 1. famous building in new York
  2. 2. Spanish mission and fortress compound
  3. 3. 42th us president
  4. 4. 44th us president
  5. 5. largest tropical wilderness
  6. 9. the huge cliff palace
  7. 11. largest body water
  8. 13. the Battle of Sharpsburg, particularly in the Southern us