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BATTLE // October 28, 1818

Battle of Arroyo Grande

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Overview

The Battle of Arroyo Grande took place between the Luso-Brazilian forces under the command of Bento Manuel Ribeiro, and the Artiguist forces of Fructuoso Rivera in Arroyo Grande, modern-day Uruguay. The Luso-Brazilian forces were completely victorious.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Battle of Arroyo Grande, fought during the Portuguese Conquest of the Banda Oriental, brought forces of the United Kingdom of Portugal, Brazil and the Algarves under Bento Manuel Ribeiro against Federal League troops under Fructuoso Rivera. Portuguese forces fielded approximately 4,000 troops, and Federal League casualties reached around 100. Beyond these figures, the recorded outcome and its operational consequences within the broader Portuguese campaign to subjugate the Banda Oriental are not documented in available sources.

Forces & casualties

Troop strength

  • United Kingdom of Portugal, Brazil and the Algarves4,000
    medium

Casualties

  • Liga de los Pueblos Libres100
    medium

Commanders (2)

Federal League

United Kingdom of Portugal, Brazil and the Algarves

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Last verified June 2026
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