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Foreign activity of European regions depends on their national (constitutional) status. In unitary states, the status is relatively the weakest, rarely explicitly recognized in Constitutions (e.g. in the Netherlands and Portugal), and legal sovereignty belongs exclusively to central authorities. Whereas in federal states, under federal Constitutions it is divided between the federation and its members,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.