The Roosevelt Corollary Policy is the correct answer.
The Roosevelt Corollary, articulated by President Theodore Roosevelt, was an expansion to the Monroe Doctrine. This policy stated that the nations of the Western Hemisphere were not open to European colonization. And, also, in order to keep life and property in those areas safe, the United States would interfere and have the responsibility to maintain order.
An independent or nonpartisan politician is a politician not affiliated with any political party. There are numerous reasons why someone may stand for office as an independent.
