After the war he received a doctorate from the University of Warsaw. He would become a political activist, supporting the Polish communist government, and would hold professorship at several minor Polish higher education institutions. During the 1980s, he was an activist of the Patriotic Association Grunwald (Zjednoczenie Patriotyczne Grunwald).
After the fall of communism in Poland Prus became associated with Radio Maryja nationalist Catholic faction, and similar organizations and media.[2] Prus was also known for his anti-EU positions and he worked as an adviser of the movement Nie dla Unii Europejskiej (No to the European Union) in Kraków.[citation needed] He was equally opposed Poland's accession to NATO.[citation needed] He has been also known for his strong criticism of Ukrainians, particularly in the view of the 20th century Polish-Ukrainian relations.[citation needed]
Works
Prus's works have been criticised for significant bias.[3] Many of Prus' publications have been printed in Wrocław by the controversial Nortom publishing house. Nortom is listed by the Roth Institute in Tel Aviv among the four Polish publishers known for their "antisemitic, Holocaust distorting or Holocaust denying books."[4] Prus's works have been classified as nonscientific.[5]
Books
Pannacjonalizm. Polityczna działalność emigracyjna byłych kolaboracjonistów z Europy wschodniej i południowo-wschodniej, Śląski Instytut Naukowy, Katowice 1976.
Z dziejów współpracy nacjonalistów ukraińskich z Niemcami w okresie II wojny światowej i okupacji, Katowice 1985, Wyd. Akademia Ekonomiczna;
Herosi spod znaku tryzuba: Konowalec - Bandera - Szuchewycz,Warszawa 1985, wyd. Instytut Wydawniczy Związków Zawodowych, ISBN83-202-0369-4
Władyka świetojurski, Warszawa 1985, Wyd. Instytut Wydawniczy Związków Zawodowych, ISBN83-202-0302-3
Atamania UPA: tragedia kresów, Warszawa 1988 Wyd. Instytut Wydawniczy Związków Zawodowych, ISBN83-202-0631-6
UPA - armia powstańcza czy kurenie rizunów ? Wrocław 1994, wyd.: "Nortom", ISBN83-85829-31-8