I think the OP asks a fair question that should not be met by emotional trench warfare, but honest research.
In this context, German war crimes or other "two wrongs make a right"-fallacies have nothing to do with the OP's question. I am sure you will find many other threads dealing with German war crimes, but it really has no relevance in this thread.
Remember that the war is over. Let's try to act like it as well.
Just my two cents.