For readers of the Revue Internationale d’éducation de Sèvres, it should first be emphasized that this work raises the question of citizenship in the era of globalization. And, as an example, we will give chapter 2, which answers the question posed by its title: "How ethnicity prevented the realization of a community of citizens in Rwanda? It should also be emphasized that the thinkers called upon, from Kant to Arendt via Gramsci, have in common that they have considered the question of citizenship in very diverse historical and national contexts, but on a scale exceeding the national borders.
We will also underline the second merit of this collective work of eleven researchers. It first paints a picture of the impeded citizenship of our present time before proposing an overcoming of these various impediments through cosmopolitical and existential citizenship.