> It used to surprise me how crudely made the various British civil defence structures I could see were They were crude because they were built in the immediat

> It used to surprise me how crudely made the various British civil defence structures I could see were They were crude because they were built in the immediate aftermath of the second world war, when Blighty wasn't exactly brimming over with spare cash. They were not really updated because, after the hydrogen bomb came on the scene in the 1950's (with Mt rather than kt warheads) they became utterly pointless; nothing can survive an H-bomb (thermonuclear) attack. Trivia: The army 'green goddess' fire engines were commissioned at the start of the cold war to help extinguish the many fires caused by a nuclear attack. These were kept in storage for a very long time, though would also have been pointless in the event of an H-bomb attack.