Which policy was characterized by a more aggressive approach to foreign relations in the late 19th century?

The late 19th century was marked by a significant shift in U.S. foreign policy, characterized by imperialism. This approach involved the expansion of American influence and control over territories beyond its borders, often justified by a belief in American superiority and a desire to spread democracy and civilization.

During this time, the United States engaged in various imperialistic ventures, such as the annexation of Hawaii, the conquest of Puerto Rico, Guam, and the Philippines following the Spanish-American War, and the establishment of a sphere of influence in China. These actions reflect a more aggressive stance in foreign relations, contrasting sharply with isolationism, multilateralism, and neutrality.

Isolationism emphasizes a focus on domestic issues and avoiding entanglement in foreign conflicts, while multilateralism advocates for cooperation with multiple countries through international organizations. Neutrality refers to a policy of not taking sides in international disagreements or wars. Therefore, imperialism distinctly embodies the aggressive pursuit of national interests on a global scale, setting the stage for the United States to become a world power in the 20th century.