Linguistic assimilation was considered by National Democrats to be a major factor for "unifying the state." For example, Grabski as Polish Minister for Religion and Public Education in 1923 and 1925–1926, wrote that "Poland may be preserved only as a state of Polish people. If it were a state of Poles, Jews, Germans, Rusyns, Belarusians, Lithuanians, Russians, it would lose its independence again"; and that "it is impossible to make a nation out of those who have no 'national self-identification,' who call themselves 'local' ("tutejszy")." Grabski also said that "the transformation of the state territory of the Republic into a Polish national territory is a necessary condition of maintaining our frontiers."