Opposition Unions
The Opposition Unions were a Spanish syndicalist trade union federation which broke away from the anarchist-led National Confederation of Labour 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 and joined the alongside the General Workers' Union. In 1936, it merged back into the CNT and its more reformist ideas were eventually adopted by the anarchists.
Background
After the proclamation of the Second Spanish Republic in 1931, the National Confederation of Labour split into two factions: a moderate, reformist faction, which included the leadership of the CNT; and a radical, insurrectionary anarchist faction, which was organised around the Iberian Anarchist Federation. As the unions of the CNT were functionally autonomous, the FAI was able to use them to propose revolutionary strike actions, without permission from the CNT leadership. Through this strategy, the FAI slowly gained control of the Catalan regional branch of the CNT and its newspaper Solidaridad Obrera. As the FAI gained influence over the CNT, thirty of the CNT's leading members issued a manifesto in protest against the FAI's infiltration tactics. These "treintistas", led by CNT General Secretary Ángel Pestaña and Solidaridad Obrera editor Joan Peiró, gained support from local unions in Valencia and small towns in Catalonia.The split between the treintistas and the faistas escalated following the Alt Llobregat insurrection, which the treintistas had condemned. Federica Montseny and Joan García Oliver publicly denounced Pestaña for not calling a general strike in solidarity with the CNT members who had been imprisoned and deported in the wake of the insurrection. Many CNT members, including hundreds imprisoned in La Model, demanded his resignation. In March 1932, he resigned as General Secretary of the CNT and was replaced by the revolutionary anarchist Manuel Rivas. By the following month, as a massive wave of CNT-led strikes engulfed Catalonia, the Catalan branch of the CNT held a regional plenum in Sabadell, where 250,000 workers were represented by 300 delegates. The April 1932 plenum elected the FAI member Alejandro Gilabert as the Regional Secretary of the CNT in Catalonia, replacing the treintista Emilio Mira. With this decision, the last reformist influence had been removed from the leadership of the Catalan CNT.
Split
Despite the changes to the regional leadership, the Local Federation of the CNT in Sabadell remained under the influence of the treintistas, who attempted to use the local branch to neutralise anarchist influence over the CNT. In a confidential report to the International Workers' Association, Alexander Schapiro claimed that the treintistas were attempting to use the Sabadell Local Federation to retake control of the Catalan Regional Committee and eventually the National Committee. By September 1932, the Sabadell Local Federation was withholding its union dues from the CNT, hoping to force the regional committee to condemn the influence of the FAI over the organisation. On 24 September 1932, the Catalan Regional Committee expelled the Sabadell Local Federation. The Sabadell Federation gained the support of the local federations in the Catalan towns of Badalona, Igualada, Manresa, Mataró and Valls, as well as the Valencian cities of Alcoy and Valencia. Local unions in Valencia withheld union dues in protest against the FAI's involvement in the Prisoners' Aid Committee and were consequently expelled by the Levante Regional Federation. The FAI responded to the split by carrying out a series of armed attacks against treintista unions. By the following year, a majority of the CNT's Valencian unions and a significant minority of its Catalan unions had broken away from the organisation.In January 1933, the breakaway unions came together to form a new syndicalist organisation, in opposition to the CNT. Together representing 60,000 workers, the unions established their own trade union centre, which they called the Opposition Unions. The new organisation established Regional Committees in Andalusia, Catalonia and Valencia, where they had the strongest base. In Catalonia alone, the Opposition Unions counted 35,000 members; these were predomintantly Catalan skilled workers and white-collar workers, in contrast with the CNT, which consisted largely of unskilled workers from outside of Catalonia. Despite the split, the Opposition Unions intended to eventually reconcile with and merge back into the CNT.
Not long after, Pestaña was expelled from the CNT Metalworkers' Union, by a vote of twelve branches against one; even his own section, the machinists' union, vote against him. In spite of his expulsion, Pestaña continued to uphold his position on gradualism. In January 1933, he established the Libertarian Syndicalist Federation, which acted as the political organisation of the Opposition Unions, modelled after the FAI's own relationship with the CNT. Joan Peiró and Juan López Sánchez became the main thought leaders of the Opposition Unions. Their position was damaged in late 1933, when Pestaña established his own political party, the Syndicalist Party. After Pestaña's exit from the union, Peiró and López made reunification with the CNT the organisation's main objective.