Dangane da umarnin taron Yalta na Fabrairu na 1945, an kafa gwamnatin wucin gadi ta Poland ta Haɗin kai a cikin Yuni 1945 a ƙarƙashin ikon Soviet;Ba da daɗewa ba Amurka da sauran ƙasashe da yawa sun amince da shi.Mulkin Soviet ya bayyana tun daga farko, yayin da aka gabatar da fitattun jagororin Polan karkashin kasa a Moscow ("Trial of the goma sha shida" na Yuni 1945).A cikin shekarun baya bayan nan, ’yan adawa sun kalubalanci mulkin gurguzu da ya kunno kai, ciki har da na soja da ake kira “la’anannun soja”, wadanda dubbai daga cikinsu suka mutu a fafatawar da makamai ko kuma Ma’aikatar Tsaro ta Jama’a ta bi ta da kuma kashe su.Irin wadannan 'yan ta'adda sukan sanya begensu bisa tsammanin barkewar yakin duniya na uku da kuma shan kaye a Tarayyar Soviet .Ko da yake yarjejeniyar Yalta ta yi kira da a gudanar da zaɓe cikin 'yanci, amma 'yan gurguzu ne ke iko da zaɓen 'yan majalisar dokokin Poland na Janairu 1947.Wasu jiga-jigan dimokuradiyya da masu goyon bayan kasashen yamma, karkashin jagorancin Stanisław Mikołajczyk, tsohon firaminista a gudun hijira, sun shiga cikin gwamnatin wucin gadi da zabukan 1947, amma a karshe an kawar da su ta hanyar magudin zabe, tsoratarwa da tashin hankali.Bayan zabukan 1947, 'yan gurguzu sun matsa zuwa ga kawar da "dimokradiyyar jama'a" na jam'i bayan yakin da kuma maye gurbinsa da tsarin gurguzu na jiha.Jam'iyyar 'yan gurguzu mai rinjaye ta Democratic Bloc na zabukan 1947, ta zama Front of Unity Unity a 1952, ta zama tushen ikon gwamnati a hukumance.Gwamnatin Poland da ke gudun hijira, ba ta san duniya ba, ta ci gaba da kasancewa har zuwa 1990.An kafa Jamhuriyar Jama'ar Poland (Polska Rzeczpospolita Ludowa) a ƙarƙashin mulkin Jam'iyyar Kwaminisanci ta Poland United Workers' Party (PZPR).An kafa PZPR mai mulki ne ta hanyar haɗin gwiwar tilastawa a cikin Disamba 1948 na Jam'iyyar Kwaminisanci ta Ma'aikatan Poland (PPR) da Jam'iyyar Socialist ta Poland (PPS) wadda ba ta gurguzu ba ta tarihi.Shugaban PPR ya kasance jagoranta na lokacin yaƙi Władysław Gomułka, wanda a cikin 1947 ya ayyana "hanyar Poland zuwa gurguzu" kamar yadda aka yi niyya don dakile, maimakon kawar da, abubuwan jari-hujja.A cikin 1948 hukumomin Stalinist suka yi masa juyin mulki, cire shi kuma aka daure shi.PPS, wanda reshenta na hagu ya sake kafawa a cikin 1944, tun daga lokacin yana da alaƙa da 'yan gurguzu.'Yan gurguzu masu mulki, wadanda a bayan yakin Poland sun gwammace su yi amfani da kalmar "' gurguzu" maimakon "kwaminisanci" don gano tushen akidarsu, suna buƙatar haɗawa da ƙaramin abokin gurguzu don faɗaɗa roƙon su, da'awar haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin haƙƙin ɗan gurguzu da kuma kawar da gasa akan siyasa. HaguMasu ra'ayin gurguzu, wadanda suka rasa kungiyarsu, sun fuskanci matsin lamba na siyasa, tsaftace akida da tsarkakewa don zama masu dacewa da haɗin kai bisa sharuddan PPR.Manyan jagororin masu ra'ayin gurguzu na 'yan gurguzu sune Firayim Minista Edward Osóbka-Morawski da Józef Cyrankiewicz.A lokacin mafi girman lokaci na lokacin Stalinist (1948-1953), ta'addanci ya zama barata a Poland kamar yadda ya cancanta don kawar da juyin juya hali.Dubban dubban masu adawa da gwamnatin ne aka yi musu shari'a ba bisa ka'ida ba kuma an kashe adadi mai yawa.Jamhuriyyar Jama'ar ta kasance karkashin jagorancin wasu jiga-jigan Tarayyar Soviet da ba a amince da su ba kamar Bolesław Bierut, Jakub Berman da Konstantin Rokossovsky.An ƙwace Cocin Katolika mai zaman kanta a Poland daga 1949, kuma a shekara ta 1950 an matsa masa lamba don ya rattaba hannu kan yarjejeniya da gwamnati.A cikin 1953 kuma daga baya, duk da narkewar da aka yi bayan mutuwar Stalin a waccan shekarar, an tsananta tsananta wa Cocin kuma aka tsare shugabanta, Cardinal Stefan Wyszyński.Babban abin da ya faru a cikin zalunci na Ikilisiyar Poland shine gwajin wasan kwaikwayo na Stalinist na Kraków Curia a cikin Janairu 1953.