Acre War

Acre War
Date1899–1903
Location
Acre, Bolivia
Result

Brazilian victory

Territorial
changes
Brazilian annexation of Acre
Belligerents
Bolivia
Supported by:
United States
Republic of Acre
Supported by:
Brazil
Commanders and leaders
José Manuel Pando
Federico Román
Nicolás Callaú
Bruno Racua
Gálvez Rodríguez
Plácido de Castro
Campos Sales
Rodrigues Alves
Units involved
Bolivian Army
Columna Porvenir (militia)
Acrean tappers
Civil militia
Support:
Brazilian Army
Casualties and losses
Unknown 500 Casualties

The Acre War, known in Brazil as Acrean Revolution (Portuguese: Revolução Acreana) and in Spanish as Guerra del Acre ("War of the Acre") was a border conflict between Bolivia and the First Brazilian Republic over the Acre Region, which was rich in rubber and gold deposits. The conflict had two phases between 1899 and 1903, and ended with an Acrean victory and the subsequent Treaty of Petrópolis, which ceded Acre to Brazil. The outcome also affected territories disputed with Peru.