In 1962 when when Belgium established the language boundary between Dutch-speaking Flanders and French-speaking Wallonia the French-speakers were extremely favoured.

The officials and supervisors were all French-speakers who "encouraged" Dutch-speaking Flemings to pretend their first language was French. So the countings (who spoke Dutch and who spoke French) were falsified.

The consequence of this is the French-speakers did annex several Flemish cities which are "frenchified" now. The linguistic struggle isn't over, due to mass migration from Brussels and Wallonia to some Flemish municipalities which are near to the language boundary some Flemish municipalities became mainly French-speaking since 2005. And guess what? The French-speakers want to change the language boundary again, they simply want to annex the new frenchified Flemish municipalities. (like Hitler had his eyes one Sudetenland.)

I'll start a new thread here in Western Europe where I explain many Flemings would like to secede from Belgium ....