Skip to main content

Bolivian Socialist Falange (FSB)

Bolivian Socialist Falange (FSB)

Founded in Santiago, Chile, in 1937 by Oscar Unzaga de la Vega, Hugo Arias, and Germán Aguilar Zenteño, the Bolivian Socialist Falange was once considered the second largest party in Bolivia. Inspired by the nationalist rhetoric of the Spanish Falange and right-wing Catholic movements in Spain, the FSB was once at the forefront of calls for the nationalization of the Bolivian tin mines. Following the 1952 revolution, however, the FSB led all opposition efforts against the ruling Nationalist Revolutionary Movement (MNR). As a result, prominent members of the FSB were imprisoned and systematically persecuted.

In 1964, the FSB was one of the principal civilian forces that helped the military bring down the MNR. In an ironic twist, seven years later, the MNR and FSB leadership joined forces with then Colonel Hugo Banzer Suárez to overthrow a populist faction of the armed forces. The FSB did not survive the military period mainly because the space it once occupied was filled by the Nationalist Democratic Action (ADN), a party founded by General Banzer Suárez in 1979. By the mid-1980s the FSB had become just another of Bolivia's numerous minuscule political parties. Under David Añez Pedraza, who became the FSB's leader in 1982, the party attempted to move toward the left, precipitating an internal battle that led to the formation of the Socialist Movement (MAS).

See alsoBanzer, Suárez, Hugo .


Alberto Cornejo, Programas políticos de Bolivia (1949).

James Dunkerley, Rebellion in the Veins: Political Struggle in Bolivia, 1952–1982 (1984).

Additional Bibliography

Irurozqui, Marta. "A bala, piedra y palo": La construcción de la ciudadanía política en Bolívia, 1826–1952. Sevilla, Spain: Diputación de Sevilla, 2000.

Lavaud, Jean-Pierre. El embrollo boliviano: Turbulencias sociales y desplazamientos políticos, 1952–1982. Lima: IEFA, 1998.

Lorini, Irma. El nacionalismo en Bolivia de la pre y posguerra del Chaco (1910–1945). La Paz, Bolivia: Plural Editores, 2006.

                                       Eduardo A. Gamarra

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Bolivian Socialist Falange (FSB)." Encyclopedia of Latin American History and Culture. . 18 Aug. 2019 <>.

"Bolivian Socialist Falange (FSB)." Encyclopedia of Latin American History and Culture. . (August 18, 2019).

"Bolivian Socialist Falange (FSB)." Encyclopedia of Latin American History and Culture. . Retrieved August 18, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.