WWII wasn't a popular discussion in our family.

The only stories I've heard from my grandfather (who died when I was fairly young) was that he served with the Dutch mobile artillery in 1940.

Now you have to imagine that the Dutch army was in bad shape before the war. The government believed Germany would respect her neutrality as they had done in WWI. The army was equiped with bicycles and horse-drawn carts, and could not even begin to compete with the motorized modern Wehrmacht. We didn't have much of an airforce.

My grandfather rode around the horse-drawn artillery pieces. Dunno if he also did the AA-guns.
At any rate, the Wehrmacht quickly overwhelmed the small, poorly equiped Dutch army, mainly because the politicians in the Hague refused to believe to that Germany would invade (despite reports of troops rallying at our borders), and so refused to order 'code red'. At least until the Germans were already in the country the next day.

My grandfather (after being discharged by the Germans) later served in the resistence and apparently shipped illegal refugees and equipement by sea beween Holland and Norway. He was eventually caught in Norway and sent to a workcamp in Poland.
He almost died there but fortunately was liberated by the Russians in 1945.

Details are sketchy at best as he refused to talk about it. I guess we'll never know what really happened to him in the war years.