and was able to intervene only later in the war. After the failure of the Revolutions of 1848, Adalbert was able to resume his plans for the establishment of a Prussian Navy. He began with the construction of warships and naval education and training. From the middle of the 1850s, one could find Prussian corvettes and frigates upon all the world's seas. Besides Prince Adalbert, other important figures of this early period were Prussian naval officers Karl Rudolf Brommy and Ludwig von Henk, who eventually became an admiral in the Imperial German Navy. At the same time, the first naval base was established on the North Sea. In the Jade Treaty (Jade-Vertrag) of 1853, the Grand Duchy of Oldenburg ceded to Prussia the so-called Jade District. Here, in the following years, arose the great naval port which received the name Wilhelmshaven in 1869. By this time, the Prussian Navy had already ceased to exist. In 1864 Prussian seamen, with some help from Austria, fought numerically superior Danish Navy again in Jasmund and Heligoland, but without much success. After the Austro-Prussian War of 1866, the North German states had allied under Prussian leadership as the North German Confederation. Out of the Prussian Navy grew the North German Federal Navy, which after the Franco-Prussian War changed its name again to become the Imperial Navy of the new German Empire. Summary Even though Prussia consistently understood itself as a continental land power, its rise and fall were closely bound up with the destiny of the Brandenburger-Prussian-German naval forces. It was the ambitious appearance of the Great Elector who prepared Brandenburg's elevation as the Kingdom of Prussia. At that time, sea power and colonies were among the essential attributes of a European power; such attributes also obviously belonged to smaller and middling powers such as Denmark and the Netherlands. For 150 years Prussia — unlike all other European powers — declined to develop its own navy. Not until the 1848-1852 war against Denmark did Prussia recognize the necessity of having at least a minimal naval force to protect maritime interests. But after only 15 years, Prussia handed over its young naval forces to the rising centralized German state, an act which would have been unthinkable for the Prussian Army. The Navy was handed over first to the North German Confederation and in 1871, as the Imperial Navy, to the new German Empire. The naval