Guerra de los Farrapos
In 1825 the proclamation of independence of Cisplatina led to the Cisplatine War between historical rivals the Empire of Brazil and the United Provinces of the Río de la Plata, Argentina's predecessor. The result was a stalemate, ending with the British government arranging for the independence of Uruguay. Soon after, another Brazilian province proclaimed its independence leading to the Ragamuffin War which Brazil won.