“Freedom is the goal, and struggle is the method”, says Lucy Dias, a university student and revolutionary activist from the organisation Liberdade e Luta (Freedom and Struggle), “but there can’t be real freedom under capitalism”. We’re sitting, along with 1500 other young socialists and political activists, in a vast warehouse in the old port district of Rio de Janeiro, Brazil. Defiant slogans decorate the walls and the building is awash with militant singing and lively drum beats. This is an international camp for young people who want to fight for their future, organised by Juntos!, a broad youth organisation. Here, there’s no doubt that spirit of freedom and struggle is universal.