Premise: The "Minas Geraes" class, spelled "Minas Gerais" in some sources, consisted of two battleships built for the Brazilian Navy in the early twentieth century. Named "Minas Geraes" and "São Paulo" , the ships were intended to be Brazil's first step towards becoming an international power, and they consequently initiated a South American naval arms race.
Hypothesis: The Brazilian Navy used the Minas Geraes in conflict.