Rubuta ci gaba don wannan sakin layi - A lokacin Jamhuriyar Poland ta Biyu, PPS da farko ta goyi bayan Józef Piłsudski, gami da juyin mulkin Mayu, amma daga baya ta koma adawa da tsarin mulkin mallaka na Sanacja ta hanyar shiga cikin 'yan adawa na' yan adawa na 'yan adawa' (cibiyar hagu). An gurfanar da shugabanni da 'yan kungiyar PPS da dama a gaban kotu
gwamnatin Piłsudski kuma aka tsare shi a cikin sanannen kurkukun Bereza Kartuska.