Battle of Arroyo Grande (1818)

Battle of Arroyo Grande
Part of Portuguese conquest of the Banda Oriental
Date 28 October 1818 Location Arroyo Grande, Uruguay Result Portuguese victory Annexation of Uruguay by Portugal
Belligerents
United Kingdom of Portugal, Brazil and the Algarves	Banda Oriental
Commanders and leaders
Bento Manuel Ribeiro	Fructuoso Rivera
Strength
4000 men	Unknown
Casualties and losses
Unknown	circa 100

The Battle of Arroyo Grande was a battle between the Portuguese forces under Bento Manuel Ribeiro, and the Artiguist forces of Fructuoso Rivera in Arroyo Grande, modern-day Uruguay. The Portuguese were completely victorious.

Consequences

After the Portuguese success in Arroyo Grande, great numbers of Artiguist soldiers and officers defected and joined the Portuguese, due to Portugal's promise of forgiveness and mercy. This, together with the battle itself, was a severe blow to Artigas' war effort.