Portugal took over Brazil as a colony. This is why most people in Brazil speak Portuguese. In fact, at one point, the country was actually ruled from Rio de Janeiro.
Because Brazil belonged to Portuguese colony until 1822
Brazil has sovereignty over the largest political unit in South America (and that political unit is the nation of Brazil).
napolean bonaparte or maximillien rosepierre whoever was in control in 1760 over the European colony
a well-defined infrastructure
brazil became a portuguese colony and still reflects portuguese influences such as language.
Portugal, in 1661. Brazil's national language is Portugese. A nice, short history of how, and why, the Dutch and Portugese fought over Brazil is on this link: http://www.zum.de/whkmla/military/17cen/dutchbrazil16301654.html
colony, protectorate, sphere of influence. economic imperialism.
japan
Italy.
Britain, it colonised most of the African countries
It appears that there were no conflicts between Portugal and Spain over the New World territory called Brazil. It also appears that no other European power had any major conflicts over Portugal's claim on Brazil.
The Spanish had control over Louisiana