Full Description:
The powerful Spanish anarcho-syndicalist movement, represented by the CNT (Confederación Nacional del Trabajo, a trade union with over a million members) and the FAI (Federación Anarquista Ibérica, a militant anarchist organization). Following the failed July 1936 coup, anarchists seized control of factories, collectivized land, and formed popular militias in Catalonia, Aragon, and Andalusia, creating a revolutionary society without a state.

Critical Perspective:
Spanish anarchism was the war’s wild card. For a brief period, it made libertarian communism a lived reality—factories run by workers’ committees, villages governed by open assemblies, currency abolished. But this revolution terrified both the Western democracies and StalinStalin Joseph Vissarionovich Stalin (18 December 1878 – 5 March 1953) was a Soviet politician, dictator and revolutionary who led the Soviet Union from 1924 until his death in 1953. Read More’s USSR. The Republic’s Communist-led suppression of anarchist collectives, culminating in the May 1937 Barcelona street battles, fatally fractured the Republican coalition. The anarchists’ insistence on revolution before victory may have been principled, but it was also strategically suicidal.

7. Popular Front

Full Description:
An electoral coalition of left-wing and liberal parties that won the Spanish general election of February 1936. It included Republicans, Socialists, Communists, and the left-wing Catalan and Basque nationalists. Its victory, which promised land reform, amnesty for political prisoners, and restoration of regional autonomy, triggered the military conspiracy that became the July 1936 coup.

Critical Perspective:
The Popular Front was democracy’s last stand in Spain—and its own worst enemy. The coalition was fractious, ranging from moderate liberals to revolutionary anarchists who refused to participate in government. The election’s narrow victory (Popular Front won 34% of the vote to the right’s 33%) was not a mandate for revolution but for reform. The military rebellion was not an inevitable response to “chaos” but a deliberate choice by generals who refused to accept electoral defeat. The Popular Front’s tragedy was that it was too radical for its enemies and not radical enough for its allies.