Opposition Unions

The Opposition Unions (Spanish: Sindicatos de Oposición; Catalan: Sindicats d'Oposició) were a Spanish syndicalist trade union federation which broke away from the anarchist-led National Confederation of Labour (CNT) in 1932. Established by the reformist faction of the CNT, the Opposition Unions were largely based in Andalusia, Catalonia and Valencia, and counted 60,000 members. The organisation was affiliated with the Libertarian Syndicalist Federation (LSF) and joined the Workers' Alliance alongside the General Workers' Union (UGT). In 1936, it merged back into the CNT and its more reformist ideas were eventually adopted by the anarchists.