People's Socialist Revolutionary Party ( eu, Herri Alderdi Sozialista Iraultzailea; HASI) was a non-legal Basque political party, considered commonly to be the political branch of

ETA Eta (uppercase , lowercase ; grc, ἦτα ''ē̂ta'' or ell, ήτα ''ita'' ) is the seventh letter of the Greek alphabet, representing the close front unrounded vowel . Originally denoting the voiceless glottal fricative in most dialects, ...

. It always ran as part of the coalition of the

Basque National Liberation Movement The Basque National Liberation Movement ( es, Movimiento de Liberación Nacional Vasco, MLNV; Basque: Euskal Nazio Askapenerako Mugimendua, "ENAM") was an umbrella term that comprised all social, political and armed organizations orbiting around t ...

Herri Batasuna Herri Batasuna (; en, Popular Unity; HB) was a far-left Basque nationalist coalition in Spain. It was founded in 1978 and defined itself as abertzale, left-wing, socialist, and supported the independence of the Greater Basque Country. It was r ...

, until its self-dissolution in the 1990s. The party's acronym "HASI" means "to begin" in Basque language.

References

Casanova, Iker; Asensio, Paul (2006). Argala. Tafalla (Navarra): Editorial Txalaparta. p. 376. . Defunct communist parties in the Basque Country (autonomous community) Basque nationalism 1979 establishments in Spain Political parties established in 1979 Communist parties in Spain Banned political parties in the Basque Country (autonomous community) {{Spain-party-stub