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