Ka cika wannan jumla: An raba tashar daga tashar Pacific a shekara ta 1838 don yaƙi da cinikin bayi a Brazil. A farkon shekarunta ana yawan kiranta da " da kuma tashar River Plate. A tsakiyar shekarun 1840s Rear Admiral Samuel Inglefield ya dauki mataki mai mahimmanci don ci gaba da kogin Paraná don haka tabbatar da ci gaba da cinikayya a lokacin mulkin mallaka na Brazil.
Yakin basasa na Uruguay.