In this article we focus on the "brasiguaios" issue, underlining the dilemmas that it poses to the projected Brazilian regional influence. We begin analyzing the literature on the matter produced in Brazil and Paraguay, as well as in some other countries. After that, we sketch the historical context in which massive Brazilian migration towards the neighboring country has occurred. Then we analyze the impact of the expansion of soybean culture in Paraguay, which has been accelerated in the 2000's, and is referred to a productive model spread by transnational corporations that has increased social conflicts in the rural area, also involving brasiguaios. To end, we present elements that point out to a Brazilian State policy that supports this regional expansion of agribusiness, a fact that suggests a contradiction in Brazilian international policy, considering that brasiguaios were among the powerful sectors that endorsed the conspiracy that shortened Fernando Lugo's mandate in June 2012, process that contradicts brazilian diplomacy.

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