Abstract
The years in which Piłsudski headed the Polish state marked his “golden age” in Polish history, a period considered as the least controversial in his career despite the failure of his federation concept and troubles with Polish national leaders in the west, especially Upper Silesia. Piłsudski’s achievements in those years are numerous and important, they include among others: the definition of Poland’s borders after military victories over the Ukrainian, Bolshevik and Lithuanian armies and in result of insurgencies in Wielkopolska and Silesia, the securement of international recognition for Poland, the construction of parliamentary democracy and local government, the promotion of a national service ethos through schools, the church, the armed forces and the media.