Thirty-Three Orientals

The Treinta y Tres Orientales (English: thirty-three orientals or thirty-three easterners) was a militant revolutionary group led by Juan Antonio Lavalleja and Manuel Oribe against the Empire of Brazil. Their actions culminated in the foundation of modern Uruguay. They became famous by the name of the Treinta y Tres Orientales when, in 1825, they began an insurrection for the independence of Oriental Province, a historical territory encompassing modern Uruguay and part of modern Brazilian Rio Grande do Sul State, from Brazilian control.

Between 1816 and 1820, the United Kingdom of Portugal, Brazil and the Algarves invaded and occupied the post-Spanish Provincia Oriental. These Luso-Brazilian forces easily defeated the resistance of the forces of José Gervasio Artigas who, when routed, had to abandon the province in 1820, and went into self-exile in Paraguay.

In February 1824 Oriental Province was annexed under the name Cisplatina Province by newly independent Brazil. It had held the same name under the former Portuguese colonial administration. Previously, a separatist movement (1822-1823) directed by various partisans of the United Provinces of Río de la Plata (Present day Argentina), had been subdued by the Brazilians. The goal of the doomed movement had been the unification of Cisplatina with the United Provinces.

...
Wikipedia