The authors of NSC-68 rejected a renewal of U.S. isolationism, fearing that this would lead to the Soviet domination of Eurasia, and leave the United States marooned on the Western Hemisphere, cut off from the allies and resources it needed to fend off further Soviet encroachments.
Brazil was by far Portugal's largest colony by area and population. Brazil was reached by the Portuguese in 1500. Due to the Treaty of Tordesillas in 1494, Portugal was allowed to colonize Brazil.
The new nation of Brazil started trading with England and all nations not under control of Napoleon. 1808. King John VI made Brazil a very liberal modern nation. After Napoleon's defeat in 1815, King John VI did not return to Portugal. In 1817, revolution broke out and King John returned to Portugal to be the king there. He left his son Pedro in charge as Prince. In 1822 Pedro declared himself King Pedro 1, but allowed the parliament to establish Brazil as a completely independent nation.