sentences:  The PPS-supported worker factions found themselves facing not only Russian police and regular troops, but "endecja" militia.Armed clashes broke out between gunmen loyal to Piłsudski's PPS and those loyal to Dmowski.Over the course of the "June Days", as the Łódź uprising became known in Poland, a miniature civil war raged between Piłsudski's PPS and Dmowski's "endeks."