ww2 puzzle

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Across
  1. 3. first attack on american soil
  2. 6. Manchuria renamed upon invasion
  3. 7. plan to invade the Ryukyu Islands
  4. 8. raid on japanese military targets 1942
  5. 9. german submarines
  6. 10. where did little boy hit
Down
  1. 1. road linking lashio and kunming
  2. 2. also known as operation overlord
  3. 4. ww2 american general of the s pacific
  4. 5. the opposite of sleep island