Kammala wannan jumlar: Italiya tana da jam'iyyar kwaminisanci mafi girma a Yammacin duniya, tare da mambobi sama da miliyan 2. Bayan rabuwa tsakanin Sin da Soviet, jam'iyyar ta sami karin sararin samaniya. Duk da cewa ba a haɗa kai da China ba, ba ta yarda da Soviets ba a kan batutuwa da yawa. Yarjejeniya ta tarihi da kuma yarda da jam'iyyar game da bambancin ra'ayi a gida, da
Soviet mamayewa a Czechoslovakia, dangantaka da Jam'iyyar Kwaminis ta Sin, mamayewar Soviet na Afghanistan da dokar ta baci a Poland. Soviets sun ba da izini don samun goyon bayan jam'iyyar don manufofinsu na kasashen waje. Koyaya, ya la'anci ayyukan Soviet a Poland kuma ya ba da shawarar cewa duka manufofin Soviet da na Amurka ba su da kyau, "Pravda" ya la'anci "zagi" na jam'iyyar. Ƙarshen Tarayyar Soviet ya sa jam'iyyar ta rushe a shekara ta 1991 kuma ta rarrabu cikin Jam'iyyar Democratic Party na Hagu da Jam'iyyar Kwaminisanci ta Refoundation ("Rifondazione Comunista").