The action of the press media of constructing and representing socio-cultural realities generates -on numerous occasions- unequal relationships, which promote and institutionalize certain identities in detriment of others. The situation becomes more complex when it deals with neighboring countries and their corresponding socio-historical-cultural traditions, shared pasts, and "hinge-like" borders. Under this scenario, the production of national news by two nationwide press media of the neighboring countries will be analyzed: "El Mercurio" of Chile and "El Comercio" of Per. In this manner, and using a methodological tool based on the Critical and Complex Analysis of the Discourse, the main objective of this research is to understand processes of construction of news and representations that the Chilean and Peruvian press make linked to the "discourse of the differences" which have been institutionalized in the relationship between them both.