Starting with the first tournament I watched since really turning interested in football - the Euro 2000 - I cheered for the Dutch, perhaps fuelled by how dire Sweden were. I loved the attitude "playing entertaining football is more important than winning" and "it doesnt count if it isnt good...
There's always been tension between the Flemish and the French parts. Nationalism? Well, if wanting to dissolve the nation is nationalism, then I guess so.
I would say all nations got at least some rabid nationalists.
In Europe, Belgium might be the closest thing. They all know their country is a pretty artificial construction. The only reason there's still some Belgian nationalists is because a lot of the French ones dont feel very Dutch while...