Landsmannschaft Ostpreussen
The Landsmannschaft OstpreuÃÂÃÂen (German for "Territorial Association of East Prussia") is a non-profit organization formed on October 3, 1948 by ethnic German refugees to Western Germany displaced from their homes in East Prussia by the Soviet occupation and Expulsion of Germans after World War II from Ex-German Eastern Territories (see Evacuation of the East Prussia). The Landsmannschaft advocates territorial revisionism—that is, the return of East Prussia to German sovereignty—and cites the Geneva Conventions and other human rights arguments to this end.
Its current president is Wilhelm von Gottberg. The Landsmannschaft has its seat in Hamburg, and is a member of the Bund der Vertriebenen.
Membership is open to people who were expelled or evacuated during World War II or after, as well as people who emigrated in more recent times, exercising their right to German citizenship, based on a 1913 German law.