Piłsudski's concept was opposed within Poland itself, where National Democracy leader Roman Dmowski[38][39] argued for an ethnically homogeneous Poland in which minorities would be Polonized.[40][41] Many Polish politicians, including Dmowski, opposed the idea of a multiethnic federation, preferring instead to work for a unitary Polish nation-state.[39] Sanford has described Piłsudski's policies after his resumption of power in 1926 as similarly focusing on the Polonization of the country's Eastern Slavic minorities and on the centralization of power.[5]