What key event helped establish the United States as a global power?

The Spanish-American War in 1898 played a crucial role in establishing the United States as a global power. This conflict marked a significant turning point in American foreign policy as it resulted in the U.S. acquiring territories such as Puerto Rico, Guam, and the Philippines, thereby extending its influence beyond North America. The outcome of the war demonstrated the military capabilities of the U.S. and its readiness to engage in overseas conflicts, signaling to the world that the nation was a formidable force.

Furthermore, the war shifted public sentiment and political attitudes towards an imperialist mindset, as the U.S. began to embrace a more assertive role in international affairs. By emerging victorious in this conflict, the United States not only showcased its military strength but also laid the foundation for future involvement in global politics, thus marking its ascent as a significant player on the world stage. The war ultimately reflected the transition of the U.S. from a continental nation to an imperial power with strategic interests in Asia and Latin America.