At the beginning of the twentieth century, numerous Hispano-American writers, who were often also diplomats, arrived in Paris. They established contact with French intellectuals, mainly academics, and participated actively in French intellectual life. The exchanges between these Hispano-American and French intellectuals were based on a common identification with Latinism, a pan-nationalistic ideology developed in Europe and Latin America since the nineteenth century and calling for unification of all “Latin” peoples. Hispano-American elites and intellectuals, looking for a way to federate all Latin-American countries against the power of the United States, and seeking a rapprochement with France for political and cultural reasons, largely supported pan-Latinism. As for their French intellectual partners, eager to reinforce their country's global influence, they conveyed the pan-Latin ideology in the framework of their efforts to promote French cultural presence in Latin America. During the Great War, these cultural and intellectual initiatives concerning pan-Latinism drew the attention of the French Ministry of Foreign Affairs, leading to their integration in the newly created French international propaganda mechanism.