In 1984 I was crossing a small border place between Bolivia and Brasil, and after stamping my passport the Brazilian official asked me if I was Walloon or Flemish? I was stunned, and then he asked me "Isn't there a civil war going on there?"
So, to be clear: Belgium, the country, is composed of three linguistic regions with some cultural differences: the North, are the Flemish who speak Dutch (60% of the population), the South are the Walloons who speak French (40%), and in the East a very small population who speak German. I won't tell how we got this last region, otherwise the Germans on this forum could claim this back
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All of them are Belgians!
There have always been some struggles, mainly political or economical (as you wish), between the Flemish and the Walloon. There have also been sometimes quarrels between my deceased father, a Walloon and my mother, she was Flemish.
That's why I buy a Grenadier, to be able to flee the country through the fields when that "civil war" starts again