WWII Code Breakers

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Across
  1. 4. A Japanese code-maker
  2. 5. First code-breaker which wasnt working because Germany updated the Enigma.
  3. 6. Main enemies of the AXIS.
  4. 8. Another attack on the U.S from Japan.
  5. 10. A new code-maker, this time impossible to decipher
  6. 11. An alliance between Germany, Italy, and Japan.
Down
  1. 1. Main code-making machine.
  2. 2. A European country, main offenders of WWI and WWII
  3. 3. A surprise attack on the U.S.A
  4. 5. Main area of the code-breaking meetings
  5. 7. Told the British and the French about the German Enigma.
  6. 9. An updated version of the Bomba
  7. 12. To willingly end something without other harm