The Revista Mexicana de Política Exterior dedicates its number 88 to issues that are part of the reality of the first decade of the 21st century: national security, migration, intelligence work, consular documentation, environmental governance, and the fight against terrorism. In order to disseminate diplomatic activity in its historical perspective, an article is included that explores the framework of diplomacy, the agio and the political affinities that linked the Hispanic-American elites in the 19th century.