Adding my 2p to this alarmingly bigotted discussion
Both my Grandfathers served in WW2, as did two of my great uncles.
Grandfather #1 served with the Coldstreams and was a regular/professional at outbreak of hostilities in '39. He saw service in many parts of the globe and always had respect for the Germans - saying on numerous occassions that they were just chaps like him doing their bit for what they believed in. He took the view that most professional soldiers seem to take - it's nothing personal, just business.
Grandfather #2 served with the London Rifles - but was a volunteer. Again seeing service in a couple of theatres. He never said anything about the Germans, but was immensely angry at the 'powers' that drove him into a situation where he had to kill, and to lose so many of his friends.
One of my great uncles served with the RAF as a tailgunner in bomber command - he took part in the appalling and arguably pointless destruction that was the Dresden Firebomb raids and in later years once the truth emerged was greatly disturbed by what he had done, and again was angry at the 'powers' that put him in that situation.
To rile against the Germans for what happened 60+ years ago is a stupid thing to do. The world was a vastly different place then and WW2 was really a continuation of WW1 - an effort by many of the antagonists to resolve the issues left wide open by the 1918 armistice and the treaty of Versailles.
To have any opinion on the why's and wherefore's of atrocities I think you must first appreciate the situation that many people found themselves in during the late '20s and '30s and which ultimately led to war.
Similarly the clash of cultures - such as east and west in Burma and the Pacific was bound to have an effect - read about Japanese culture prior to 1900. Surrender was the most humiliating thing to happen to a warrior, and those that surrendered, or indeed were captured were considered beneath contempt.
I'm not condoning the actions of any of the nations of WW2
I'm simply saying that we see things through the informed eyes of the 21st century.
60 years ago it was a different matter.