This polity saw a group of thirty-three men led by Antonio Lavalleja declare it to be part of the southern United Provinces, and it was previously annexed by its northern neighbor into the Cisplatine Province.
One leader of this polity died after being defeated by Jose Castelo Branco's forces at Tacuarembo, though that leader had earlier won a decisive victory in the Battle of Las Piedras. This polity saw a group of thirty-three men led by Antonio Lavalleja declare it to be part of the southern United Provinces, and it was previously annexed by its northern neighbor into the Cisplatine Province. Colonia del Sacramento was the first major city founded in this country, which was led by Jose de Artigas. This country gained independence through an 1828 treaty brokered by Britain, after which it saw a war between factions led by Fructuoso Rivera and Manuel Oribe. For 10 points, identify this South American country which saw intermittent conflicts between the Blancos and Colorados and was originally named the Banda Oriental.
One leader of this polity died after being defeated by Jose Castelo Branco's forces at Tacuarembo, though that leader had earlier won a decisive victory in the Battle of Las Piedras.
Oriental Republic of Uruguay [accept Banda Oriental until it is read]