Fourth International

Opening March March 2026

The Anti-Fascist and Anti-Imperialist Conference: Achievements, challenges and opportunities (plus statements)

Manuel Rodriguez Banchs, Penelope Duggan, Israel Dutra, Antoine Larrache, João Machado, Reymund de Silva and Eric Toussaint reflect on the 1st Anti-Fascist Conference for the Sovereignty of Peoples. Plus statements from Fourth International and European Network for Solidarity with Ukraine.
book cover

On Ernest Mandel’s contributions

Paul Le Blanc — Manuel Kellner has accomplished what earlier studies on Mandel did not provide: a systematic examination and assessment of his wide-ranging theoretical contributions.
Ecosocialism fist

Manifesto for an ecosocialist revolution: Possible consequences in the Philippines

Daniel Tanuro — An emergency plan for social and ecological justice is only possible if it is linked to a fight for the political power.
Israel attack on Tehran

(Further updated) Statements: Stop Israel now! No war on Iran!

A collection of statements opposing Israel’s military strikes on Iran released by various socialist organisations.
red and green ecosocialist fist

Manifesto for an ecosocialist revolution — Break with capitalist growth

The Fourth International has publishing this Manifesto because it is convinced that the process of ecosocialist revolution, at different territorial levels but with a planetary dimension, is more necessary than ever.
Palestine mask

Israel’s war on Palestine: An imperialist attack on the entire Middle East

Fourth International — In Palestine, more than anywhere else, the victorious struggle of the exploited and oppressed can be the path to a fairer world.
red and green

Fourth International: Draft manifesto of revolutionary Marxism in the age of capitalist ecological and social destruction

Fourth International — An ecosocialist society is needed, and can be achieved only through a revolution. This manifesto tries to assess the best ways and means towards this aim.
ecological crisis

Neoimperialism, ecological crisis and the fight for a new internationalism: An interview with Pedro Fuentes

Pedro Fuentes discusses imperialism’s new phase, ecological crisis and "accumulation by dispossession", the unpredictability of contemporary politics and the need for a new internationalism.
Palestine protest

Fourth International: In solidarity with people's struggles against unbridled imperialism, for the liberation of the peoples and saving the environment

Fourth International — The wars we are facing are linked to the global crisis of capitalism and the resulting headlong rush into conflict between rival imperialist powers.

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Artwork for Ecosocialism 2026 conference

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