The Battle of Estero Rojas took place on 24 September 1867, when a Brazilian convoy, coming from Tuyutí to Tuju-Cuê, was attacked by Paraguayan troops under the command of Vallois Rivarola.
To a lesser extent, the Brazilian forces, under the command of general Albino de Carvalho, were saved by the arrival of general Manuel Marques de Sousa forces, who repelled the Paraguayans.
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