Editing Air Raid Precautions (section)

==Numbers==
[[File:Ministry of Information Second World War Official Collection D5943.jpg|thumb|right|250px|An ARP warden in [[Poplar, London]] at the start of the Second World War.]]
By the outbreak of war there were more than 1.5 million involved in the various ARP services.<ref>{{cite web|url=https://www.bbc.co.uk/history/ww2peopleswar/timeline/factfiles/nonflash/a6651425.shtml|title=BBC - WW2 People's War - Timeline |website=www.bbc.co.uk |access-date=2 February 2023}}</ref> There were around 1.4 million ARP wardens in Britain during the war.

Full-time ARP staff peaked at just over 131,000 in December 1940 (nearly 20,000 were women). By 1944, with the decreasing threat from enemy bombing,  the total of full-time ARP staff had dropped to approximately 67,000 (10,000 of whom were women). Volunteers in 1944 numbered nearly 800,000 (of whom 180,000 were women).

===Civil Defence regions===
Mainland Britain was divided in eleven CD regions. Each has a headquarters that controlled the services in that region.
* Region 1 – [[Northern England|Northern]] – [[Newcastle upon Tyne|Newcastle]]
* Region 2 – [[North East England|North Eastern]] – [[Leeds]]
* Region 3 – [[North Midlands|North Midland]]<ref name="North Midland">{{cite web | url=https://www.ww2civildefence.co.uk/civil-defence-reserve.html#:~:text=Civil%20Defence%20Reserve%20%28Mobile%20Reserve%20%26%20Regional%20Columns%29,consisted%20of%20East%20and%20West%20Sussex%20and%20Kent | title=Civil Defence Reserve (Mobile Reserve & Regional Columns) during WW2 | access-date=13 November 2022}}</ref> – [[Nottingham]]
* Region 4 – [[East of England|Eastern]] – [[Cambridge]]
* Region 5 – [[London]]
** Group 1 – 1. [[Chelsea, London|Chelsea]], 2. [[Fulham]], 3. [[Hammersmith]], 4. [[Kensington]], 5. [[Westminster]]
** Group 2 – 6. [[Hampstead]], 7. [[Paddington]], 8. [[Marylebone|St Marylebone]], 9. [[St Pancras, London|St Pacras]], 10. [[Islington]], 11. [[Stoke Newington]]
** Group 3 – 12. [[Bethnal Green]], 13. [[City of London]], 14. [[Finsbury]], 15. [[Hackney, London|Hackney]], 16. [[Holborn]], 17. [[Poplar, London|Poplar]], 18. [[Shoreditch]], 19. [[Stepney]]
** Group 4 – 20. [[Bermondsey]], 21. [[Deptford]], 22. [[Greenwich]], 23. [[Lewisham]], 24. [[Woolwich]]
** Group 5 – 25. ??, 26. ??, 27. ??, 28. ??, 29. ??
** Group 6A – 30. [[Cheshunt]], 31. [[East Barnet]], 32. [[Edmonton, London|Edmonton]], 33. [[Enfield, London|Enfield]], 34. [[Hornsey]], 35. [[Southgate, London|Southgate]], 36. [[Tottenham]], 37. [[Wood Green]]
** Group 6B – 38. [[Friern Barnet]], 39. [[Potters Bar|Potter's Bar]], 40. [[Barnet Rural District]], 41. [[Finchley]], 43. [[Barnet Urban District]], 46. [[Hendon]]
** Group 6C – 42. [[Bushey]], 44. [[Harrow, London|Harrow]], 45. [[Ruislip]] and [[Northwood, London|Northwood]], 47. [[Uxbridge]], 48. [[Wembley]], 49. [[Willesden]], 50. [[Acton, London|Acton]], 51. [[Ealing]], 60. [[Southall]] and [[Norwood Green|Norwood]]
** Group 6D – 54. [[Brentford]], 53. [[Feltham]], 54. [[Hayes, Hillingdon|Hayes]] and ??, 55. [[Heston]] and ??, 56. [[Staines-upon-Thames|Staines]], 57. [[Sunbury-on-Thames|Sunbury]], 58. [[Twickenham]], 59. [[Yiewsley]]
** Group 7 – 61. ??, 62. ??, 63. ??, 65. ??, 66. ??, 67. ??, 68. ??, 69. ??, 70. ??, 71. ?? + 1 other
** Group 8 – 72. [[Beckenham]], 73. [[Bexley]], 74. [[Bromley]], 75. ??, 78. ??, 79. ??
** Group 9A – 80. [[Barnes, London|Barnes]], 81. ??, 82. ??, 83. ??, 84. ??, 85. ??, 86. ??, 88. ??
** Group 9B – 90. ??, 91. ??, 92. ??, 93. ??, 94. ??, 95. ??
* Region 6 – [[Southern England|Southern]] – [[Reading, Berkshire|Reading]]
* Region 7 – [[South West England|South Western]] – [[Bristol]]
* Region 8 – [[Wales]] – [[Cardiff]]
* Region 9 - [[Midlands|Midland]] – [[Birmingham]]
* Region 10 – [[North West England|North Western]] – [[Manchester]]
* Region 11 – [[Scotland]] – [[Glasgow]]
* Region 12 – [[Northern Ireland]] – [[Belfast]]