He supported an alliance with Soviet Union and after the war he continued to work as historian in People's Republic of Poland and headed Western Institute that studied former Polish territories recovered from Germany and history of Polish-German relations.
He supported an alliance with Soviet Union. He continued to work as historian in People's Republic of Poland. This was after the war. He headed Western Institute. This was after the war. Former Polish territories recovered from Germany. This was what this Western Institute studied. Former Polish territories recovered from history of Polish-German relations. This was what this Western Institute studied.