The correct answer is: A movement towards American Imperialism.
American Imperialism is defined as the cultural, economic and military influence of the United States internationally. This term was developed in the late nineteenth century, a time better known as the Age of Imperialism because The United States quickly expanded their territorial possessions.
The people who supported the American Imperialism thought that new markets would increase trade; military strength would increase power and culture would help to spread worldwide their religion and language.
The most notable instance of American Imperialism was the annexation of Hawaii in 1898.