A shekara ta 1899, mazauna Brazil daga Acre sun kirkiro wata ƙasa mai zaman kanta a yankin da ake kira Jamhuriyar Acre. Bolivians sun yi ƙoƙari su mallaki yankin, amma 'yan Brazil sun tayar da hankali kuma akwai rikice-rikice na kan iyaka, suna haifar da labarin da aka sani da Acre War. A ranar 17 ga Nuwamba, 1903, tare da sanya hannu da sayarwa a cikin Yarjejeniyar Petrópolis, Brazil ta sami mallaka na ƙarshe na yankin. Acre an haɗa shi cikin Brazil a matsayin yanki da aka raba zuwa sassan uku. Yankin ya shiga ƙarƙashin ikon mallakar Brazil don musayar biyan fam miliyan biyu, ƙasar da aka karɓa daga Mato Grosso kuma daidai da ginin layin dogo na Madeira-Mamoré. Tambaya: Menene sunan tsarin sufuri da aka ambata?
hanyar jirgin kasa ta Madeira-Mamoré