because it made it harder to get there
Portugal.
Brazil.
Those areas colonised by Portugal. Brazil in particular.
Americas, South America
South America
Portugal gained control of Brazil in the Americas. The future country of Brazil was claimed for Portugal in April 1500 by Pedro Álvares Cabral [ca. 1468 - ca. 1520]. Subsequently rival strongholds established by British, Dutch, French and Spanish settlers were overthrown successfully by Portugal.
Portugal
I'm guessing it would be Portugal, the country that colonized Brazil.
Brazil and Uruguay were colonized by Portugal.
Portugal. Brazil was colonized by Portugal
Portugal was the colonial ruler of Brazil when Brazil was a colony of Portugal.
First thing to note: the Americas include all the land where countries like Canada, the United States (mistakenly known as "America"), Mexico, Argentina or Brazil are located. Nowadays, Portugal no longer claims any land on the Americas; it used to own present-day Brazil but such country became independent from Portugal in September 7, 1822. Mexico has land in the Americas, but current claims against other countries just include clear boundary demarcation.