Salar Mohandesi’s Red Internationalism is a milestone study about the fortunes of anti-war internationalism as an ideal advocated by left-wing political movements, particularly in the 1960s and 1970s. Building upon a growing body of literature, this monograph emphasises the pivotal role that these decades played not only in the history of ideas of human rights, but also as a decisive moment in transforming our political arena into a global domain. In this context, historical actors imagined a global civil society contrasted against the old imperial politics by arguing for a defence of human rights as being central to international thought, thus reshaping the intellectual and ideological contours of internationalism and its debates