The Unión Sindical Obrera (USO) is a Spanish trade union. Founded as a clandestine organization in 1961—during the dictatorship of Francisco Franco—the union was an outgrowth of Roman Catholic organizations dedicated to Catholic social teaching, particularly on the dignity of work. Influenced by the French Democratic Confederation of Labour (CFDT), which also had Catholic roots but was by that time drifting away from any formal relation to the church, USO declared itself from the outset to be secular and socialist. Like the CFDT, after 1968 USO advocated autogestion (workers' self-management). More information...
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