Ramba uchinyora ndima iyi - Muzana ramakore idzva, sezvo hondo dzakava dzisina chisimba uye dzisingawanzoitiki, Brazil yakapinda mukukakavadzana kuduku neBolivia nokuda kweAcre, iyo yakawanikwa neBrazil muna 1902. Muna 1917 Brazil yakazivisa hondo kuCentral Powers, yakabatana nerutivi rwakabatana muHondo Yenyika Yokutanga ndokutumira ngarava duku kuGungwa reMediterranean nedzimwe hondo kuti dzibatanidzwe nemauto eBritain neFrance munharaunda yacho. Brazil ndiyo chete nyika yokuSouth America yakapinda muHondo Yenyika I. Gare gare muna 1932 Colombia nePeru dzakapinda mukurwa kwechinguva chiduku
nokuda kwenharaunda iri muAmazon. Mugore rimwe chetero Paraguay yakazivisa hondo kuBolivia nokuda kwokutora Chaco, mukukakavadzana uko kwakaguma makore matatu gare gare norukundo rwaParaguay. Pakati pa1941 na1942 Peru neEcuador dzakarwa zvine mutsindo kumatunhu akataurwa neese ari maviri ayo akabatanidzwa nePeru, achitora muganho weEcuador neBrazil.