Discussion moved since I've been involved here. I would add only one thing. Nazi regime was horrible and it was needed to fight it by all means. My point is that if you fight for a just cause it is important not to slip into hatred or to retaliate with a questionable means. We speak about strength which goes along honour and integrity.
You want to live with head held high in peace after all fighting ended.
Here is a
great article which describes it all.
Some will understand and some not...