It is the union of the umbrella organisations of the four national minorities which belong to the German nation and have always been resident and autochthonous here: The DOMOWINA of the Sorbs, the Friesian Council, the South Schleswig Association of the Danish minority, and the Central Council of German Sinti and Roma.
Along with delegates of minorities from the USA, Mexico, Argentina, Japan, India, Sri Lanka, France and Holland Rose is also a member of the management committee of the International Movement Against Discrimination and Racism (IMADR) founded in Tokyo in 1988.
Since June 1979 he has led the work for the civil rights of German Sinti and Roma before the eyes of the German as well as the international public; he has also fought for their protection from racism and discrimination, for compensation for the survivors of the Holocaust – at the same time announcing the magnitude and the historical importance of the genocide of 500,000 Sinti and Roma in National Socialist occupied Europe.
In May 1995, in cooperation with the member organisations of the Central Council, Rose achieved recognition for German Sinti and Roma as a national minority in Germany with their own minority language, connected with their goal of equal participation in social and political life.
Rose was also one of the driving forces behind the Memorial to the Sinti and Roma Victims of National Socialism in Berlin.