The paper deals with bilateral relations between Argentina and Chile in recent decades, highlighting the potential of their new border relations. It assumes that the wide range of governmental actors, subnational and local entities linking each other have given this a unique dynamic border and are considered spaces of cooperation. The article is descriptive-reflective and is organized around a series of questions about the continued search for Argentine-Chilean border integration since the

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... ies and the construction of top-down and bottom-up institutional agreements. Within the variety of links, some remarkable examples are selected for the article like the "Integration Committees", the settlement of the Central West of South America Integration Zone (Zicosur) and the Argentine-Chilean cooperation in Antarctica. It stresses the integrationist Maipú Treaty (2009) and institutions that charge different instances of bilateral dialogue.