Which of the following would prevent Japanese intervention in its neighboring island of the Philippines? a. the Gentlemens Agreement b. the Roosevelt Corollary c. the Root-Takahira Agreement d. the Treaty of Portsmouth e. the Teller Amendment

The answer to the question "Which of the following would prevent Japanese intervention in its neighboring island of the Philippines?" The answer is D. The Treaty of Portsmouth; once WW2 ended, the Treaty of Manila established the independent nation of The Philippines, preventing any future intervention from Japan. The Gentlemans Agreement, would not have any legal standing; The Roosevelt Corollary was dealing with the US's involvement with Venezuela; The Root-Takahira Agreement was one between US and Japan; and the Teller Amendment were conditions on the US military in Cuba.