Solidarity Federation, which was formed in 1950, originally named the Syndicalist Workers' Federation. The German Free Workers' Union (, FAU) was formed to carry on the FAUD's tradition in 1977, but has a membership of just 350 as of 2011. It left the IWA in 2018 to form the International Confederation of Labor (ICL). Spain has several syndicalist federations, including the CNT, which has around 50,000 members as of 2018. It, too, was a member of the IWA until 2018, when it joined the FAU in forming the ICT. After being defeated in the Civil War, tens of thousands of CNT militants went into exile, mostly in France. In exile, the organization atrophied, with just 5,000 mostly older members by 1960. During Spain's transition to democracy, the CNT was revived with a peak membership of over 300,000 in 1978. However, it was soon weakened, first by accusations of having been involved in the bombing of a nightclub, then by a schism. Members who favored participation in state-sponsored union elections left and formed an organization they would eventually name the General Confederation of Labor (, CGT). Despite these concessions, the CGT still views itself as an anarcho-syndicalist organization and has around 100,000 members as of 2018. According to Darlington, syndicalism left a legacy that was widely admired by labor and political activists in a number of countries. For example, the IWW song "Solidarity Forever" became part of the American labor movement's canon. The strike wave, including the recruitment of unskilled and foreign-born workers by the Congress of Industrial Organizations, that swept the United States in the 1930s followed in the IWW's footsteps. The tactic of the sit-down strike, made famous by the United Auto Workers in the Flint sit-down strike, was pioneered by Wobblies in 1906. In his study of French syndicalism, Stearns concludes that it was a dismal failure. The radicalism of syndicalist labor leaders, he claims, shocked French workers and the government and thereby weakened the labor movement as a whole. Syndicalism was most popular among workers not yet fully integrated into modern capitalist industry, but most French workers had adapted to this system and accepted it. Therefore, syndicalism was not able to seriously challenge prevailing conditions or even scare politicians and employers. See also Anarchism Anarcho-communism Anarcho-syndicalism Community unionism Council communism Economics of fascism Guild socialism Industrial unionism Libertarian socialism List of syndicalists National syndicalism One Big Union