Dresden architecture and numerous world-renowned museums and art collections, Dresden has been called "Elbflorenz" (Florence of the Elbe). The incorporation of neighbouring rural communities over the past 60 years has made Dresden the twelfth largest urban district by area in Germany after Berlin, Hamburg and Cologne. The nearest German cities are Chemnitz to the southwest, Leipzig to the northwest and Berlin to the north. Prague, Czech Republic is about to the south and to the east is the Polish city of Wrocław. Dresden is one of the greenest cities in all of Europe, with 63% of the city being green areas
German frigate Hamburg March and 3 June 2013 "Hamburg" deployed with the carrier combat group, and was tasked with co-ordinating all flight movements within a radius of 180 km, including all take-offs and landings on the carrier. "Hamburg" was the first German ship to fully integrate into an American Strike group, and it was the first time in the history of the US Navy that a German frigate was entrusted with the sole protection of an American aircraft carrier. On 11 February 2014 "Hamburg" deployed from Wilhelmshaven with the frigates "Mecklenburg-Vorpommern" and "Augsburg", the corvette "Oldenburg " and the storeship "Frankfurt am Main"