While the Ukrainian Greek Catholic Church (UGCC), which functioned in communion with the Latin Rite Catholicism, could have hoped to receive a better treatment in Poland where the leadership saw Catholicism as one of the main tools to unify the nation – the Poles under Stanisław Grabski saw the restless Galician Ukrainians as less reliable than the Orthodox Volhynian Ukrainians, seen as better candidates for gradual assimilation. That's why the Polish policy in Ukraine initially aimed at keeping Greek Catholic Galicians from further influencing Orthodox Volhynians by drawing the so-called "Sokalski line".