 Dmowski was a deputy to the 1919 Legislative Sejm , but he attended only a single session , seeing the Sejm as too chaotic for him to exert much influence ; he also spent much of that year either in Paris or recuperating from a lung infection , in Algeria . He reorganized endecja into a new party , Popular National Union ( Związek Ludowo @-@ Narodowy ) . During the Polish @-@ Soviet War he was a member of the Council of National Defense and a vocal critic of Piłsudski 's policies . In the aftermath of the war , Polish eastern borders were similar , if somewhat smaller , from what became known as the Dmowski 's Line . 
