WW II Intelligence

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Across
  1. 2. to convert a coded message back to its orginal
  2. 3. indigenous Americans who used their language as a
  3. 4. to transfer information into another system of
  4. 5. puts text in code to hide its meaning
  5. 7. the act of spying
  6. 8. Navajos named planes after various types of ______
  7. 9. German code system used during WWII
Down
  1. 1. discovery and defeat of enemy espionage
  2. 5. English translation of Navajos' term for
  3. 6. meaning of word Navajos used for bombs