Geography and urban development of Dresden past 60 years has made Dresden the fourth largest urban area in Germany after Berlin, Hamburg, and Cologne. The most important river in Dresden is the Elbe river, the only navigable body of water to flow through the city. There are also a number of tributaries such as the river Weißeritz. The nearest German cities are Chemnitz (80 km to the southwest), Leipzig (100 km to the northwest) and Berlin (200 km to the north). The Czech capital Prague is about 150 km to the south; the Polish city of Wrocław is about 200 km to the east. There are
German frigate Hamburg German frigate Hamburg Hamburg is a "Sachsen"-class frigate of the German Navy. Built by Howaldtswerke-Deutsche Werft, Kiel, "Hamburg" was the second of the "Sachsen" class to be launched and then commissioned into the German Navy. She is based at Wilhelmshaven, initially as part of "1. Fregattengeschwader" with the other ships of the "Sachsen" class, and from 9 January 2005 as part of the "2. Fregattengeschwader", which itself became part of the new "Einsatzflottille 2" on 27 June 2005. "Hamburg" joined Operation Atalanta, the EU-led anti-piracy mission, in November 2010. She was on deployment with EUNAVFOR until March 2011. Between 24