World War II Crossword :-)

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Across
  1. 3. A popular Instrument in 1939
  2. 5. where most of the wars were fought?
  3. 10. Hamburgers in the U.S were re named what, to avoid a german sounding name?
  4. 11. How many WWII movies did John Wayne play parts in?
  5. 12. When did World War II start?
  6. 15. 5 out of 4 of the soldiers died on this position
Down
  1. 1. Germany surrended the war because who commited suicide?
  2. 2. Which country bombed "Pearl Harbor"
  3. 4. how many people died in WWII?
  4. 6. How many soviet males born in 1923 died during the WWII
  5. 7. When did WWII end?
  6. 8. How did woman and children protect themselves?
  7. 9. The most important medical advance that saved soldiers’ lives during WWII was what?
  8. 13. Who invaded Polland?
  9. 14. What was the longest battle of the WWII