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Argentine Socialist Vanguard Party (Spanish: Partido Socialista Argentino de Vanguardia) was a political party in Argentina. PSAV was founded around 1960 as a leftist split from the Argentine Socialist Party (PSA). The founder of PSAV was Alexis Latendorff. The remaining PSA became known as 'PSA (Casa del Pueblo)'.

In the congress of PSAV in 1961 in Córdoba, PSAV explicitly adopted Marxism-Leninism and a politico-military revolutionary strategy.

PSAV later split up, into Popular Vanguard and Communist Vanguard.

v t e Former political parties and alliances in Argentina
19th century –early 20th century	Unitarian Party Federalist Party National Autonomist Party (PAN) Civic Union of the Youth (UCJ) Civic Union National Civic Union (UCN) National Autonomist Party (Modernist) Lencinism (Mendoza) Antipersonalista Radical Civic Union (UCR-A) Rightist Confederation Independent Socialist Party (PSI) National Democratic Party (PDN) Concordancia
1930s–1970s	Democratic Union (UD) Radical Civic Union (Junta Renovadora) Labour Party (PL) Peronist Party (PP) Female Peronist Party Intransigent Radical Civic Union (UCRI) Radical Civic Union of the People (UCRP) Democratic Socialist Party (PSD) Argentine Socialist Party (PSA) Revolutionary and Popular Indo-american Front (FRIP) Union of the Argentine People (UDELPA) Argentine Socialist Vanguard Party (PSAV) Socialist Party of the National Left (PSIN) Popular Socialist Party (PSP) Worker's Socialist Party (PST) Federalist Popular Alliance (APF) Revolutionary Popular Alliance (APR) Justicialist Front for National Liberation (FREJULI)
1970s–2010s	Workers' Revolutionary Party Federalist Popular Force (FUFEPO) Autonomist-Liberal Pact (Corrientes) Alliance for Work, Justice and Education (ALIANZA) Commitment to Change Federal Party Front for a Country in Solidarity (FREPASO) Argentines for a Republic of Equals (ARI) United Left (IU) Front for Change Encuentro Amplio An Advanced Nation (UNA) Civic and Social Agreement (ACyS) Recreate for Growth Front for Change/Social Pole People's Reconstruction Party Everybody's Front (1996) Federalist Unity Party Union of the Democratic Centre Broad Front UNEN Plural Consensus Solidarity and Equality Movement for Socialism Liberal Libertarian Party Broad Progressive Front United for a New Alternative Union for Córdoba
since 2020s	Everybody's Front
Portal:Politics List of political parties Politics of Argentina Argentine active political parties