Batalha de Aquila/Arbolito
1827 CE.
Shown on the map at -33.954°, -58.396°.
The naval Battle of Juncal took place between a squadron of the newly independent United Provinces of the River Plate under command of William Brown and a squadron belonging to the Brazilian Empire, commanded by Sena Pereira. It spanned two days, from 8 to 9 February 1827, in the waters of the Río de la Plata. The two squadrons were initially of roughly equal strength, but because of superior command and control, and gunnery training, the Argentines scored a decisive victory: out of 17 Brazilian vessels, 12—including the flagship with its admiral—were captured and 3 were burnt. Not a single Argentine vessel was lost. In the aftermath of the battle, the Third Division, the arm of the Brazilian fleet tasked with controlling the Uruguay River and thus disrupting communications with the Argentine army then operating in the Cisplatina province, was completely destroyed. The result was the biggest naval victory for Argentina in the Cisplatine War.
Text from the Wikipedia article Battle of Juncal, licensed CC BY-SA 4.0.