The main tenet of this article is to argue that the process of regionalisation in Latin America is entering into a new phase, where South America is consolidating an own process of regional integration. From being not more than a geographical expression, South America is rapidly becoming a political and economic entity with increasing international actorhood. One important difference to the past is that there is now a ‘core state’, Brazil, with a clear strategy directed towards deepening South American integration. Yet, Brazil is not alone; there is also an increasing convergence with other South American states and old rivalries are being substituted for increased cooperation in areas such as economy, infrastructure, energy, security or aid. As this article explains, the logic of action of the forces behind the process of integration can be understood by analysing the evolution of South American geopolitical current called ‘geopolitics of integration’.