The Unified (or Sole) Syndical Confederation of Peasant Workers of Bolivia (, CSUTCB) is the largest union of

peasant A peasant is a pre-industrial agricultural laborer or a farmer with limited land-ownership, especially one living in the Middle Ages under feudalism and paying rent, tax, fees, or services to a landlord. In Europe, three classes of peasan ...

s in

Bolivia Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in central South America. The country features diverse geography, including vast Amazonian plains, tropical lowlands, mountains, the Gran Chaco Province, w ...

. The CSUTCB was formed in 1979 in opposition to government-sponsored peasant unions, and immediately replaced the National Confederation of Peasant Workers of Bolivia. Under the leadership of the Túpac Katari Revolutionary Movement, the CSUTCB became an independent organization. The CSUTCB became involved in the Central Obrera Boliviana labor federation and (because of the decline of the miners' federation) became a leading force in the COB. Through the CSUTCB's pressure, the COB moved beyond a purely

class Class, Classes, or The Class may refer to: Common uses not otherwise categorized * Class (biology), a taxonomic rank * Class (knowledge representation), a collection of individuals or objects * Class (philosophy), an analytical concept used d ...

-based focus to address

indigenous Indigenous may refer to: *Indigenous peoples *Indigenous (ecology) In biogeography, a native species is indigenous to a given region or ecosystem if its presence in that region is the result of only local natural evolution (though often populari ...

demands, as well. During the 1990s the CSUTCB moved beyond its support base of Aymara-speaking indigenous people, bringing

Guaraní Guarani, Guaraní or Guarany may refer to Ethnography * Guaraní people, an indigenous people from South America's interior (Brazil, Argentina, Paraguay and Bolivia) * Guarani language, or Paraguayan Guarani, an official language of Paraguay * G ...

- and

Quechua Quechua may refer to: *Quechua people, several Indigenous ethnic groups in South America, especially in Peru *Quechuan languages, an Indigenous South American language family spoken primarily in the Andes, derived from a common ancestral language ...

-speaking indigenous into its ranks. The CSUTCB played a significant role in the series of demonstrations that brought down President

Carlos Mesa Carlos Diego de Mesa Gisbert (; born 12 August 1953) is a Bolivian historian, journalist, and politician who served as the 63rd president of Bolivia from 2003 to 2005. As an independent politician, he had previously served as the 37th vice pr ...

in 2005. The CSUTCB has supported nationalisation of Bolivia's natural gas reserves and opposed water privatization. The CSUTCB was a founding member of the

Pact of Unity The Pact of Unity () is an evolving national alliance of Bolivian grassroots organizations in support of indigenous and agrarian rights, land reform, the rewriting of the 1967 constitution through a Constituent Assembly, and a left-indigenous trans ...

supporting the

Evo Morales Juan Evo Morales Ayma (; born 26 October 1959) is a Bolivian politician, trade union organizer, and former cocalero activist who served as the 65th president of Bolivia from 2006 to 2019. Widely regarded as the country's first president to come ...

government.

See also