摘要:Despite attempts to integration in South America date back to the nineteenth
century, only in 2004, was created the first block to gather the 12 countries of
the region, the CASA, which changed the name to UNASUR in 2007. Why this
conformation occurred in 2004? The hypothesis is that the confluence of
integrationist positions in the three regional powers, especially in Brazil and
Venezuela, driven by one chancellor and two presidents, enabled the creation of
the body. To sustain this, the work uses a series of empirical data since the
military regimes in Argentina and Brazil.