Which conflict was a significant test of U.S. military power during its imperial phase?

The Spanish-American War marked a pivotal moment in the establishment of the United States as an imperial power. Taking place in 1898, this conflict was fueled by feelings of nationalism, the desire for territorial expansion, and humanitarian concerns for Cuban independence from Spain.

The war was relatively brief but showcased the United States' military capabilities and technological advancements, including modern naval ships and effective strategies that decisively defeated Spanish forces. The outcome resulted in the U.S. gaining significant territories, including Puerto Rico, Guam, and the Philippines, effectively marking the turn towards a more aggressive foreign policy.

This conflict is significant as it demonstrated America’s willingness and ability to project military power beyond its borders, establishing itself as a player on the global stage and setting a precedent for future interventions in foreign conflicts. The implications of the war also extended into discussions about American identity and the ethics of imperialism, influencing U.S. policies in subsequent years.