Yes, but if you actually look at the proceedings of the Nuremberg tribunals, bombing cities didn't make it into the indictment, since the allies knew they had a very weak case on this one.
When it came to war crimes, the defendents were accused of planning aggressive wars, breaking the Geneva convention by systematically exploiting and killing prisoners of war, hostage killings and the general way occupation had been handled, which often times was in direct opposition to what the Geneva convention demanded.
When it came to war crimes, the defendents were accused of planning aggressive wars, breaking the Geneva convention by systematically exploiting and killing prisoners of war, hostage killings and the general way occupation had been handled, which often times was in direct opposition to what the Geneva convention demanded.


