Which country is NOT a founding member of NATO?

Brazil is the correct answer because it was not one of the founding members of NATO. NATO, or the North Atlantic Treaty Organization, was established in 1949 with twelve founding countries: the United States, the United Kingdom, France, Canada, Belgium, Denmark, Iceland, Italy, Luxembourg, the Netherlands, Norway, and Portugal. Each of these countries was motivated by mutual defense and collective security in the context of post-World War II tensions, particularly regarding the threat from the Soviet Union.

Brazil, located in South America, was not involved in the formation of NATO, which is primarily a Euro-Atlantic alliance. Its inclusion in any conversation around NATO might lead to confusion, as Brazil has historically been more aligned with different international partnerships and organizations.