Christmas Blitz

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Across
  1. 5. of "White Christmas" singer (6 letters)
  2. 8. for Britain's air force (3 letters)
  3. 10. Christmas ornament (6 letters)
  4. 13. heating resource, rationed during WWII (4 letters)
  5. 14. cathedral that survived the Blitz, symbol of resilience (7 letters)
  6. 15. for naval component of Operation Overlord (7 letters)
  7. 16. name for Santa Claus, derived from St. Nicholas (4 letters)
  8. 18. for Allied intelligence project breaking Enigma (5 letters)
Down
  1. 1. name of the U.S. President during most of WWII (9 letters)
  2. 2. bomb used in air raids, colloquially known (10 letters)
  3. 3. beverage often spiced with nutmeg (3 letters)
  4. 4. name of Churchill's wife (9 letters)
  5. 6. of a major battle in North Africa (9 letters)
  6. 7. of the five landing areas at Normandy (4 letters)
  7. 8. including Germany, Italy, and Japan (4 letters)
  8. 9. shelter type, named after a British politician (7 letters)
  9. 10. Pauls
  10. 11. of Dwight D. Eisenhower (3 letters)
  11. 12. Alamein
  12. 17. of British bomber used in WWII (9 letters)