Oberländer - along with Jan Dziedziora, Jacek Sienicki, and Elżbieta Grabska - was an initiator and among the most active organizers of the "Against War, Against Fascism" Polish National Exhibition of Young Visual Arts, held in July of 1955 at Warsaw's Arsenal just before the political "thaw" of 1956. The idea for the exhibition was first put forward at a social gathering held at his small apartment in the Okolnik district of Warsaw. Stalin had died two years earlier and hopes were high for ideological change. It was in this atmosphere that a group of young painters, supported by an equally young art historian and critic, decided to organize an exhibition made up of works created during outside of the official art world during the Socialist Realist period and subsequently hidden away in private studios for years. Once assembled, the exhibition was viewed as a protest against both Socialist Realism and Colorism - a movement that had ruled Polish art after World War II, reigning especially strong in academic circles.
In 1939 Oberländer was pressed into the Soviet Army and remained a soldier through 1946, serving within the borders of the Soviet Union. After the war he enrolled at the Visual Arts College in Warsaw (1946-48) and went on to study at the city's Academy of Fine Arts from 1948 to 1953.
(Author: Małgorzata Kitowska-Łysiak, Art History Institute of the Catholic University of Lublin, Faculty of Art Theory and the History of Artistic Doctrines, December 2001. culture.p )