Air Marshal Sir Arthur (Bomber) Harris said, "The Nazis entered this war under the rather childish delusion that they were going to bomb everyone else, and nobody was going to bomb them. At Rotterdam, London, Warsaw, and half a hundred other places, they put their rather naive theory into operation. They sowed the wind, and now they are going to reap the whirlwind."
And darn-well right, too! Of course we should commemorate the magnificent work the men of Bomber Command did in World War II and let German objectors and British "Dresden whiners" alike lump it!
For Harris's backing-source, see the King James Bible, Hosea Chapter 8 Verse 7, "For they have sown the wind and they shall reap the whirlwind."
Reap it they did and with no one to blame but themselves!