Well, Germany destroyed half of Europe and would have surely spread outward had it continued. In modern times we would have to intervene, if only for economic reasons.
Allied snipers wanted to take advantage of the capabilities of sniper technology, but were forbidden to do so. There's a little scene in Saving Private Ryan that references this, but I've heard the same thing from veterans of the war.
I've heard the reasons for it, but when its all said and done, leaders need to be safe from each other. Dying is for the peasantry. Deciding where and when they die is the job of kings.
Anyone wondering what I'm talking about start here:
The Psychology of Persuasion
I like this thread. It's got all manner of thought to follow.
We should obviously get involved, but not alone.
Eat me, drink me, love me;
Laura make much of me