Catalonia?
What about Cuba,Venezuela? something like that is more realistic xD
But of great interest to me, i've never seen a Great War in V2 before, or a French war with Spain.Thats quite a war going on there in Europe, but of little interest for Brazil,... or not?
you don't need to think about pourtugal's involement in the war. Your main concerns should be the building of your infusructure. Then you may resume becoming the EPIC EMPERER OF THE BRAZILLIAN EMPIRE, WHICH WILL SPAN SOUTH AMERICA AND BEYOND!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!