Yup, we flattened it, not the only German city to be flattened either. However having discussed this with people in Cologne (site of the first 1000+ bomber raid) it is clear even the Germans accept that they started the war and that in war damage - sometimes a hell of a lot of damage - is done.
What would be interesting to remember are other facts:
a) Hitler hadn't really wanted to start the war that early because he wanted more time to build strength BUT that the weakness of the UK made his generals itchy to get going.
b) Had we had the balls and brains to listen to Churchill and rebuild our military early enough we would have won quicker and avoided such destruction.
c) If we hadn't so dangerously weakened our military (so they were short of equipment - my Grandad remembers the promises of protection for the army lorries that still hadn't arrived by Dunkirk) we would have been able to stand up to Hitler instead of coming back with a piece of toilet paper.
d) The Russians - for all Stalins faults - suffered - and then inflicted - a good deal more deaths than we did.
So STOP the stupid beating us all up over bombing a city and look at the way we are currently weakening our already weak military and appreciate the lessons of history and the dangers we are putting ourselves in front of.
With democracy anyone can be elected (Hitler was along with many other dictators and unpleasant leaders ... quite a few of our own) and what might seem safe now (like relying on the USA for defence) might prove very stupid in a year or two (who knows what might happen in the USA next election or when the oil runs out... don't forget we have some).