Communist Left of Spain (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...

: Izquierda Comunista de España) was a 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...

 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. Although the group was affiliated to the International Left Opposition, Leon Trotsky objected to its name, believing that it failed to stress that the organisation viewed itself as an external faction of the Communist Party. It eventually merged with the 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 party Bloque Obrero y Campesino, 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). Its General Secretary was Andreu Nin i Pérez.