Darkness2006 said:No, it's just a dream, not an Italian people demand, or something like that.
I don't really know what a "core" province means. Is it something that the country wants? That the leader of the country wants?? That the inhabitants of that province wants??
Because of that I just let the cores like they are normally.
I'd say it's any province that the country doesn't need an armed force to keep control of the civilians and resistance, and one where the industries willingly go towards the effort of the occupying country.