London Calling, and it's still there.
I remember a conversation I had with a former LW wingco. I saw an Irving book in his shelf. I asked about it, he grinned, and said, "if you Read Irving, you have to read it from a good distance"
Anyway, the first bombing that caused such a firestorm was Hamburg. The British did not know it, but after the war the information came from the surviving German High command, that if the raid had been repeated like 2 times in some short time with similar effect, Germany would have had no option but to resign.
Well, the Brits did not quite know this, and they had some big political fights about issues like this.
FYI, London was getting very close to a civilian revolt during the autumn of 1940.
What saddens me though is to see that on the "anniversary" of that day in Dresden, there were 3000 neo-Nazis marching the streets.