Final answer:
The Spanish-American War marked the United States' ascent to global power, resulting in territorial expansion and a shift in international perception of the U.S.'s military might. The war involved gunboat diplomacy and significant media influence, ultimately leading to an American empire with overt control in Cuba and other territories.
Step-by-step explanation:
The Spanish-American War signified a pivotal moment in U.S. history as it marked the country's emergence as a global power. In this conflict, often referred to as "a splendid little war" by then-Secretary of State John Hay, the United States successfully challenged the Spanish Empire, leading to the independence of Cuba and the acquisition of territories such as Puerto Rico, Guam, and the Philippines. Beyond the immediate military victories and territorial gains, the war symbolized a shift in the global perception of the U.S., which began to be recognized for its formidable military prowess and imperial ambitions.
President McKinley capitalized on the public's support for Cuban rebels and the interests of U.S. business by deploying naval forces in a clear act of gunboat diplomacy. The media also played a significant role, with figures like William Randolph Hearst influencing public opinion and politics through sensationalized news coverage that fueled the war sentiment.
The aftermath of the war saw the United States assert influence in the Caribbean and Pacific regions, with the annexation of Hawaii and others emphasizing the U.S.'s new imperial phase. However, this expansion was also marked by domestic issues such as racial divisions, highlighted by the continued service of the Buffalo Soldiers. Moreover, the Platt Amendment underscored America's grasp on newly independent Cuba, revealing the complex nature of the post-war balance of power and the U.S.'s hegemonic stance.