Accession is not a prerequisite. The Danube region is one of Europe's assets from all points of view: natural beauty, with unique flora and fauna; a cradle of civilisations which have influenced, and are still influencing, Europe's history; the route of the river, which winds its way through incomparable cities such as Vienna, Budapest, Bratislava, Belgrade and Bucharest. The Danube flows through countries of the EU (Germany, Austria and Hungary), candidate countries such as Croatia (which is...