Danube-Auen National Park Danube-Auen National Park Donau-Auen National Park () covers 93 square kilometres in Vienna and Lower Austria and is one of the largest remaining floodplains of the Danube in Middle Europe. The German word Aue (variant Au) means "river island, wetland, floodplain, riparian woodland", i.e. a cultivated landscape in a riparian zone. The words Aue and Au occur in a large number of German place names—including Donau, the German word for the Danube River—and refer to forests, meadows, and wetlands in river and stream lowlands and floodplains. The Danube-Auen National Park protects a large area of lowland forests, meadows, wetlands, and
Nazi rule over the Danube River the river, stretching from Mohács in southern Hungary all the way to the Black Sea. Another suggested turning Belgrade into a fortress-city of the Reich ("Reichsfestung") and the center of a "Reichsgau" (administrative subdivision), to be named Prinz-Eugen. Neither of these ideas was officially endorsed by the wartime German government, however, and the historical record indicates that the Nazis had no clear conception as to what extent Germany should control the Danube or how this control was to be effected. Hitler's own preference, at least for the immediate future, was the retention of a number of satellite states (Hungary, Romania,