Camp of Great Poland was founded on 4 December 1926 in Poznań by Popular National Union (Związek Ludowo-Narodowy, ZLN) and other organizations of right-wing National Democracy political camp, led by Roman Dmowski, to unite Polish right-wing organizations and oppose sanacja regime, which gained power following Józef Piłsudski's May Coup in 1926.
[3] In 1927, a youth branch of the organization was established (Polish: Ruch Młodych Obozu Wielkiej Polski),[4] which virtually dominated OWP by 1928.
[11] Camp of Great Poland supported strongly religious corporative authoritarianism,[5] borrowing some ideas from Italian Fascism.
[3][12] An OWP front organization, the Green Ribbon League (Polish: Liga Zielonej Wstążki), actively propagated a boycott of the Jewish-owned businesses.
[13] In early 1930s OWP campaigned for numerus nullus, a policy of complete exclusion of Jewish students and academics from Polish universities.