Kammala jumla mai zuwa: Jam'iyyar ta taka muhimmiyar rawa kai tsaye da kuma a kaikaice a lokacin muhimmin lokaci na tarihin Iran wanda ya fara da 1951 na mallakar kamfanin Anglo Iranian Oil Company (AIOC), kuma ya ƙare tare da 1953 na kifar da Mohammad Mosaddeq ta hanyar CIA
juyin mulki. Manufar jam'iyyar ta "juyawa", da farko ta kai wa Mosaddeq hari a matsayin "wakilin mulkin mallaka na Amurka", sannan kuma ta ba shi goyon baya a lokacin da kuma bayan tashin hankalin Yuli na shekarar 1952. A ranar 15 ga watan Agusta an yi yunkurin juyin mulki a kan Mosaddeq godiya a wani bangare ga bayanan da cibiyar sadarwar soja ta Tudeh TPMO ta gano, amma kwanaki biyu bayan haka 'yan gwagwarmayar jam'iyyar ba da gangan ba sun taimaka wajen lalata gwamnati ta hanyar gudanar da zanga-zanga don matsa lamba ga Mosaddeq don ayyana Iran a matsayin jamhuriya ta dimokiradiyya. Kamar yadda wannan zai rushe mulkin mallaka na Iran, Mosaddeq ya amsa ta hanyar kiran sojoji don murkushe masu zanga-zangar. Bayan haka jam'iyyar ta yi ritaya a rana mai zuwa wanda ya sa ba ta da damar yin yaƙi da juyin mulki a rana mai zuwa. A shekara ta 1957 an murkushe TPMO kuma an kama dubban mambobin jam'iyyar.