Unified PSI–PSDI

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Unified PSI–PSDI
Membership	700,964 (1966) [1]
Ideology	Democratic socialism, Social Democracy
Website N/A

The Unified PSI–PSDI (PSI–PSDI Unificati) was the name of the party formed by the union of the Italian Socialist Party (PSI) and the Italian Democratic Socialist Party (PSDI) from 1966 to 1969. The party party was often referred to as the Unified Socialist Party (Partito Socialista Unificato, PSU).

The two parties joined forces in 1966, after the entrance of PSI for the first time in an Italian government majority, the centre-left coalition led by Aldo Moro and composed of DC, PRI and PSDI.

After the unsuccessful performance of the united party in the 1968 general election, the PSU returned officially to the name PSI. On July 6, 1969, the former members of PSDI left to form the "United Socialist Party", which adopted back the denomination of PSDI in 1971.

 

Historical Italian political parties (active parties: simple version, in 2007)

Communist: Communist Party of Italy, Italian Communist Party, Organisation of Communists of Italy (Marxist-Leninists), Proletarian Unity Party, Proletarian Democracy, Movement of Unitarian Communists Socialist and social-democratic: Italian Socialist Party, Italian Reform Socialist Party, United Socialist Party (1922), Labour Democratic Party, Italian Socialist Workers' Party, United Socialist Party (1949), Italian Democratic Socialist Party, Italian Socialist Party of Proletarian Unity, Unified Socialist Party, Democratic Party of the Left, Italian Socialists, Democrats of the Left Green: Green Lists, Rainbow Greens Social liberal: Action Party, Radical Party, Democratic Alliance, Democratic Union, Movement for Democracy – The Net, The Democrats, European Republicans Movement, Liberal: Italian Liberal Party, Union of the Centre, Liberal Party Centrist: Patto Segni, Italian Renewal, United Consumers, Southern Democratic Party, Middle-of-the-Road Italy, Democracy is Freedom – The Daisy Regionalist: Social Democratic Party of South Tyrol, Fronte Marco Polo, Sardinia Project, Sicilian Alliance Christian democratic: Italian People's Party (1919), Christian Democracy, Italian People's Party (1994), Christian Democratic Centre, United Christian Democrats, Christian Democrats for the Republic, Democratic Union for the Republic, European Democracy Conservative: Uomo Qualunque Front, Monarchist National Party, People's Monarchist Party, Italian Democratic Party of Monarchist Unity, National Democracy Fascist and neo-fascist: National Fascist Party, Italian Social Movement–National Right Leftist coalition: Popular Democratic Front, Alliance of Progressives, Centre-left coalition:The Olive Tree, The Union, Rose in the Fist Liberal coalition: National Democratic Union, National Bloc, Republicans, Liberals, Reformers Centrist coalition: Pact for Italy, Pact of Democrats Centre-right coalition: Pole of Freedoms, Pole of Good Government, House of Freedoms Conservative coalition: National Bloc of Freedom Neo-fascist coalition: Social Alternative Liste civetta: For the Abolition of Scorporo, New Country