Though the Ustaše emphasized religious themes, it stressed that duty to the nation took precedence over religious custom.[14] They attached conditions to citizenship of people of Islamic faith, such as asserting that a Muslim who supported Yugoslavia would not be considered a Croat, nor a citizen but a "Muslim Serb" who could be denied property and imprisoned.[14] The Ustase claimed that such "Muslim Serbs" had to earn Croat status.[14] The Ustaše also saw the Bosnian Muslims as "the flower of the Croatian nation".[15]