Ghost in the fog

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Across
  1. 2. Samurai code followed by the Japanese forces
  2. 4. Name of US Navy ship that evacuated the citizens of attu
  3. 5. US president during WW2
  4. 6. site of the first atomic bombing
  5. 8. Emperor of Japan
  6. 10. Japanese fighter plane known for outclassing US fighters
  7. 11. Name of the first atomic bomb
  8. 12. The country that invadeAlaskaislands of alaska
  9. 15. Site of the second atomic bombing
  10. 17. Nickname of the cryptographers working to decode Japanese radio messages
  11. 18. The ocean that the Japanese and US fought for control over
Down
  1. 1. The biggest naval battle of WW2 which decimated the Japanese fleet
  2. 2. US bomber used to bomb Japan
  3. 3. The first Japanese strike on the US which decimated the US Pacific fleet
  4. 7. What US soldiers call the Japanese soldiers who fought using the fog as a shield
  5. 9. Capital City of Japan
  6. 13. One of the islands invaded starts with A
  7. 14. One of the islands invaded starts with K
  8. 16. The main US fighter plane used early in the war
  9. 18. The US flying boat