Children from all over the world to guest in the pioneer's republic "Wilhelm Pieck" in the Werbellinsee in Joachimsthal in the federal state Brandenburg in the area of the former GDR, German democratic republic. As a guest of honour Konrad Naumann, 1st secretary of the district management SED Berlin and member of the Politburo of the central committee of the SED also took part in the GDR