Revolutionary Workers' Party (Bolivia)

The Revolutionary Workers' Party (Spanish: Partido Obrero Revolucionario, POR) is a Trotskyist political party in Bolivia. At its height in the late 1940s and early 1950s, the POR was one of the few Trotskyist parties in history to gain a mass working-class following.

The POR was founded in December 1935 at a congress in Córdoba, Argentina, called by Gustavo Navarro and other Bolivian radicals who were in exile because of the Chaco War. The congress formally merged three Bolivian exile groups based in Argentina, Chile, and Peru respectively. Under the advice of José Aguirre Gainsborg, the leaders of the new POR affiliated with Leon Trotsky's International Left Opposition. When the Chaco War ended in 1935, the POR leaders returned to Bolivia. The leaders disagreed over whether to maintain a strict Trotskyist party or form a broad socialist movement.

As Bolivia passed through a series of short-lived military dictatorships, the POR began to enter the emerging labor movement. In 1947 the party's activists formed the Mining Parliamentary Bloc caucus in the newly formed miners' union (the FSTMB), which was to become the most active and militant union in Bolivia. Along with the populist Revolutionary Nationalist Movement (MNR) it became one of the two most influential parties in the mineworkers' movement. FSTMB president Juan Lechín, an MNR member, maintained good relations with the POR. In November 1946, the FSTMB adopted a program known as the "Pulacayo Thesis" that was heavily influenced by the POR's ideology. The Pulacayo thesis was essentially an application of Trotsky's Transitional Program to Bolivian conditions.

...
Wikipedia