People's Socialist Revolutionary Party

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Political party in Spain

Politics of Basque Country

People's Socialist Revolutionary Party (Basque: Herri Alderdi Sozialista Iraultzailea; HASI) was a non-legal Basque political party, considered commonly to be the political branch of ETA. It always ran as part of the coalition of the Basque National Liberation Movement, Herri Batasuna, until its self-dissolution in the 1990s. The party's acronym "HASI" means "to begin" in Basque language.