The Farrapos War was the longest provincial revolt faced by the Brazilian Empire. It originated with a dispute between two factions of regional elites vying for sources of power and wealth in a context marked by economic stagnation, institutional changes wrought by the Regency governments, and the geopolitical reconfiguration of the Rio de la Plata region. The rebels, known as farroupilhas or farrapos, overthrew the government of Rio Grande do Sul and established an independent republic.
The main farrapo leaders were military officers and estancieiros, the owners of large estates, enslaved people, and cattle in the region that bordered Uruguay and Argentina. Their goal was to achieve autonomy in order to distribute political offices, control the borders, and change the fiscal and commercial policy of the empire. Their opponents, known as legalists, were drawn mostly from sectors related to maritime trade, the production of charque (dried and salted beef), and the urban military and administrative bureaucracy. The soldiers of both sides were recruited among the lower classes. They were cowboys and peasants. The farrapos also organized a sizable army of enslaved people who had been confiscated from their opponents and who performed military service in exchange for their freedom.
The Republic of Rio Grande do Sul experienced a sharp decline beginning in 1842. The Battle of Porongos in November 1844 was the last major engagement of the war and resulted in the massacre of Black soldiers from the farroupilha forces. The campaign to bring the province back under government control, led by the Baron of Caxias, was carried out through the granting of amnesties, the payment of debts, and the incorporation of farroupilha officers into the Imperial Army. With the end of the Farrapos War, the Brazilian Empire ensured its internal consolidation and returned to an assertive foreign policy in the Río de la Plata region.
