 Primeira Linha has been doing political work in the heart of Nós-Unidade Popular since 2001, and has also participated in youth organizations, independent student organizations, and feminist, cultural and trade unions.In 2002, Primeira Linha held its third congress, in which the members defined the organization's theoretical model of socialism, and worked out, "the essential composition and working direction of the movement for Galicia's national liberation", rejecting the traditional inter-class formula used by earlier nationalist organizations.Primeira Linha also affirmed that, "the morphology of classes in Galicia is more similar to that of advanced capitalist societies than of the so-called Third World.