Rein-Main-Tonava-vesiliikennereitti, joka yhdistää Pohjanmeren Rotterdamin sataman kautta Mustaanmereen Constanţan sataman kautta, voi muodostaa Euroopan selkärangan.
The Rhine-Main-Danube transport waterway, which links the North Sea, via the port of Rotterdam, and the Black Sea, via the port of Constanţa, can become the backbone of Europe.Europarl8 Europarl8