The Workers and Peasants' Bloc (in Catalan

Catalan language

Catalan is a Romance language, the national and only official language of Andorra and a co-official language in the Spanish autonomous communities of Catalonia, the Balearic Islands and Valencian Community, where it is known as Valencian , as well as in the city of Alghero, on the Italian island...

: Bloc Obrer i Camperol, in Spanish

Spanish language

Spanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...

: Bloque Obrero y Campesino; BOC) was a "Right Opposition

Right Opposition

The Right Opposition was the name given to the tendency made up of Nikolai Bukharin, Alexei Rykov, Mikhail Tomsky and their supporters within the Soviet Union in the late 1920s...

" communist group in Spain

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

. BOC was founded in Barcelona

Barcelona

Barcelona is the second largest city in Spain after Madrid, and the capital of Catalonia, with a population of 1,621,537 within its administrative limits on a land area of...

 in 1931, as the mass front of the Catalan-Balearic Communist Federation (FCCB), after the merger of the Catalan Communist Party

Catalan Communist Party

Catalan Communist Party was a political party in Catalonia, Spain. PCC was founded in 1928. It had its origins in l'Ateneu Enciclopèdic Popular, which had been formed in 1926, and in the Marxist sectors of the Catalan separatist movement...

 into FCCB. FCCB, which made up the nucleus of BOC, later changed its name to Iberian Communist Federation, thus stating its intention to expand itself and BOC throughout Spain.

The central publication of BOC was La Batalla. BOC also published L'Hora and El Front in Barcelona

Barcelona

Barcelona is the second largest city in Spain after Madrid, and the capital of Catalonia, with a population of 1,621,537 within its administrative limits on a land area of...

, L'Espurna in Girona

Girona

Girona is a city in the northeast of Catalonia, Spain at the confluence of the rivers Ter, Onyar, Galligants and Güell, with an official population of 96,236 in January 2009. It is the capital of the province of the same name and of the comarca of the Gironès...

 and Avant in Lleida

Lleida

Lleida is a city in the west of Catalonia, Spain. It is the capital city of the province of Lleida, as well as the largest city in the province and it had 137,387 inhabitants , including the contiguous municipalities of Raimat and Sucs. The metro area has about 250,000 inhabitants...

.

Prominent leaders of BOC were Joaquín Maurín

Joaquín Maurín

Joaquín Maurín Juliá was a Spanish Communist politician and revolutionary, leader of the Workers and Peasants Bloc and of the Workers' Party of Marxist Unification...

, Hilari Arlandis, Jordi Arquer

Jordi Arquer

Jordi Arquer was a Catalan communist politician and writer.-Biography:Born in Barcelona in 1907. During the dictatorship of Miguel Primo de Rivera, he participated in the clandestine opposition, collaborating with the independentista groups of Francesc Macià. He was a part of the Centre...

, Pere Bonet, Víctor Colomer and Abelard Tona Nadalmai.

In November 1935, the majority of BOC merged with the Trotskyist

Trotskyism

Trotskyism is the theory of Marxism as advocated by Leon Trotsky. Trotsky considered himself an orthodox Marxist and Bolshevik-Leninist, arguing for the establishment of a vanguard party of the working-class...

 Communist Left of Spain

Communist Left of Spain

Communist Left of Spain was a Trotskyist political party during the Second Spanish Republic. Its central leader was Andres Nin, who had been a supporter of the Left Opposition while living in Russia...

, to form the Workers' Party of Marxist Unification

Workers' Party of Marxist Unification

The Workers' Party of Marxist Unification was a Spanish communist political party formed during the Second Republic and mainly active around the Spanish Civil War...

 (POUM; Spanish: Partido Obrero de Unificación Marxista; Catalan: Partit Obrer d'Unificació Marxista). The minority stayed out of the merger and later joined the Unified Socialist Party of Catalonia

Unified Socialist Party of Catalonia

The Unified Socialist Party of Catalonia , was formed on July 23, 1936 through the unification of four left-wing groups; the Catalan Federation of Spanish Socialist Workers' Party , the Partit Comunista de Catalunya , the Unió Socialista de Catalunya and the...

(PSUC).