Paulino José Soares de Souza, viscount of Uruguay acted strongly in the context of Brazil's foreign policy Empire in the period between 1849 and 1865. Despite having already occupied the Ministry of Foreign Affairs between 1843 and 1844 is only starting his second term at the head of that's affairs is visible the adoption of a more active foreign policy. Much of the historiography considers the year 1849 as a turning point in the foreign policy of the Empire, which until that time dealt with specific issues, assumed a broader role. Leaving the ministry in 1853, he was still a central politician in the area, being an active member of the Section of Justice and Foreign Affairs of the State Council in the first years of the Paraguayan War, and the role he fulfill in discussions about opening Amazon river to foreign navigation, matter in which polarized the political debate with Tavares Bastos. Although the historiography has already been devoted to analyzing the external issues of the imperial government (but giving preference to specific treatments), and also own political action Paulino de Souza, no work treated specifically on foreign policy conceptions of the future viscount, nor its singular importance to this reconfiguration Brazil's performance in the face of foreign nations, and that marked the course of foreign policy in subsequent decades (and in which he was directly involved until 1865.
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