It was created in compliance with article 4, of the Treaty of Alliance between Brazil and the Oriental Republic of Uruguay, which aimed to militarily assist in political stability after the Uruguayan Civil War.

[3] Urquiza would command the Argentine forces and Eugenio Garzón would lead the Colorado Uruguayans, with both receiving financial and military aid from the Empire of Brazil.

[4] The government of Montevideo rewarded Brazil's financial and military support at the final stages of the war by signing five treaties in 1851 that provided for perpetual alliance between the two countries.

[6] In a period of three years, Brazil had destroyed any possibility of reconstituting a state encompassing the territories of the old Viceroyalty of the Río de la Plata, a goal cherished by many in Argentina since independence.

[9] On the other hand, the region also lost economic importance, as the internal agricultural frontier expanded and also Brazil's domestic industry, greatly benefited during the war years.