Beginning in the 1890s, America's position toward Latin America began to change, largely based on Secretary of State James G. Blaine's ideas. A historian writes, "Blaine's policy toward Latin America had two main objectives: promotion of peace and increased trade. Both were in a sense anti-European" (DeConde, 1963, p. 295). During this time, negotiations were underway to build what would eventually become the Panama Canal through Central America, so there was an increased awareness of the importance of the area, and how important it would be to open up the area to American trade. In this instance, the policy was certainly based on American self-interest, because eventually America stepped in and built the canal and acquired the Canal Zone as a result. The Secretary also wanted to create liaisons with other Latin American countries to help prevent war in the Americas, which was more ideology based, as well.

As far as Asia was concerned, America had begun to limit the number of Chinese...

This alienated China and the Chinese, and strained the relationship between the two countries. Historian DeConde continues, "In parts of China, hatred of Americans, sparked by a rising nationalism, burned deeply. In 1904 and 1905 people boycotted American goods, and anti-American feeling swept through the treaty ports and several provinces" (DeConde, 1963, p. 305). In this case, the treaties and Congressional legislation were based on prejudice and racism, because Americans felt the Chinese were taking money and jobs from American workers, and they loudly protested.
References

DeConde, a. (1963). A History of American foreign policy. New York: Charles Scribner's Sons.

Varg, P.A. (1971). The United States a world power, 1900-1917: Myth or reality? In Twentieth-Century American foreign policy, Braeman, J., Bremner, R.H., & Brody, D.…