Cisplatine War
| Cisplatine War | |||||||||
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 From top left: Battle of Juncal, Battle of Sarandí, Oath of the Thirty-Three Orientals, Battle of Ituzaingó |
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| Belligerents | |||||||||
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| Commanders and leaders | |||||||||
 Pedro I of Brazil 1st Baron of Rio da Prata Marquis of Barbacena Viscount of Laguna
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 Bernardino Rivadavia Carlos M. de Alvear William Brown Juan Antonio Lavalleja
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| Strength | |||||||||
| 6,000 regulars in Banda Oriental | 7,700 regulars and militia | ||||||||
| Casualties and losses | |||||||||
| Over 914 deaths | Over 208 deaths | ||||||||
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United Provinces
of the Río de la Plata
The Cisplatine War, commonly known as the Argentine-Brazilian War, was an armed conflict over an area known as Banda Oriental or the "Eastern Strip" (roughly present-day Uruguay) in the 1820s between the United Provinces of the Río de la Plata and the Empire of Brazil in the aftermath of the United Provinces' emancipation from Spain.
Led by José Gervasio Artigas, the region theretofore known as the Eastern Bank, in the Río de la Plata Basin, revolted against Spanish rule in 1811, against the backdrop of the 1810 May Revolution in Buenos Aires as well as the regional rebellions that followed in response to Buenos Aires' pretense of primacy over other regions of the viceroyalty. In the same context, the Portuguese Empire, then hosted in Rio de Janeiro, took measures to solidify its hold on Rio Grande do Sul and to annex the region of the former Eastern Jesuit Missions.
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Wikipedia