The Socialist Party of National Liberation (Catalan: Partit Socialista d'Alliberament Nacional, PSAN) is an independentist and communist party active in the Catalan Countries. The PSAN was created in 1968 following a split in the more leftist sector of the National Front of Catalonia. Initially it was only present the Principality of Catalonia, but later also gained presence in Northern Catalonia (September 1971), the Valencian Country (July 1974) and the Balearic Islands (February 1976). The party was illegal and clandestine until 1978, when all parties were fully legalised, after the Franco Dictadorship.