The Platine War was fought between the Argentine Confederation and an alliance consisting of the Empire of Brazil, Uruguay and the Argentine provinces of Entre Ríos and Corrientes. The war was part of a long-running contest between Argentina and Brazil for influence over Uruguay and Paraguay, and hegemony over the Platine region. The conflict took place in Uruguay, on the Río de la Plata, and northeastern Argentina. In 1850, the Platine region was politically unstable. Although the governor of Buenos Aires, Juan Manuel de Rosas, used his position to gain dictatorial control over other Argentine provinces, his rule was plagued by a series of regional rebellions. Meanwhile, Uruguay struggled with a long-running civil war which started after acquiring independence from Brazil in 1828. Rosas backed the Uruguayan Blanco party in this conflict, and further desired to extend Argentine borders to areas formerly occupied by the Spanish Viceroyalty of the Río de la Plata. This meant asserting control over Uruguay, Paraguay, and Bolivia. Rosas' objective also threatened Brazilian interests and sovereignty since the old Spanish Viceroyalty had also included territories which had since been assimilated into Brazil's province of Rio Grande do Sul. Wikipedia [ - ]

The Platine War was fought between the Argentine Confederation and an alliance consisting of the... [ + ]