Croatian Catholic movement (HKP) is a form of political Catholicism which was active in the first half of the 20th century in Croatia and Bosnia and Herzegovina.
[1] The movement began with First Croatian Catholic meeting in Zagreb in 1900, which were initiated by similar motions in Europe and by the impulses of the popes Leo XIII and Pius X.
The goal of HKP was defending and promoting Catholic faith and its moral principles in Croatian public and social life, which were endangered by rapid liberalism and secularism.
When the seniors accepted the May Declaration of 1917 as a basis for their work on "national issues", it was quite evident that Rogulja's "Yugoslav orientation" of the HKP had won a decisive victory.
HKS founded the Croatian People's Party, which were mostly clerical and also dominantly Yugoslav oriented, what produced a great unsuccessfulness in the new state – the Kingdom of Yugoslavia.