para,
I'm not trying to start, or continue, a Dutch "bashing", argument. I'm also not sure the Dutch were any better or worse than a variety of other nations (including the British) in terms of volunteers fighting for the Germans in WW2, but for the sake of accuracy, you might like to show your wife this:
23rd SS Volunteer Panzer Grenadier Division Nederland - Wikipedia, the free encyclopedia
Yes, I know it's from wikipedia, but I'm sure it's simple enough to confirm from other sources.
Just to confirm I'm not "bashing" the Dutch, here's an article that talks about British volunteers fighting for the Germans:
British Volunteers in the German Wehrmacht in WWII