IndexThe Age of Manifest DestinyThe Spanish-American WarEconomic Interests and the Open Door PolicyTheodore Roosevelt and the Roosevelt CorollaryWorld War I and Global InfluenceThe Cold War EraConclusionAmerican Imperialism , the expansion of United States influence and territory beyond its continental borders, has been a hallmark of the nation's history. From the late 19th century to the present, the United States has engaged in various forms of imperialism, each shaped by unique geopolitical, economic, and ideological factors. In this essay we will explore the historical roots of American imperialism, examining the motivations, methods, and consequences of US expansionism. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay The Age of Manifest Destiny The concept of manifest destiny, which emerged in the mid-19th century, played a critical role in shaping American imperialism. He believed it was the United States' divine destiny to expand westward across North America, spreading its ideals and institutions. Westward expansion during this era, often accompanied by the displacement and mistreatment of indigenous populations, laid the foundation for future imperial ambitions. The Spanish-American War The late 19th century witnessed a significant turning point in American imperialism with the Spanish-American War of 1898. The United States, driven by economic interests and a desire for overseas expansion, intervened in the struggle Cuban for independence from Spanish colonial rule. The war led to the acquisition of territories such as Puerto Rico, Guam, and the Philippines, marking the emergence of the United States as an imperial power beyond the American continent. Economic Interests and the Open Door Policy One of the primary motivations behind American imperialism was economic. The late 19th and early 20th centuries saw a surge in U.S. investment and trade in foreign markets, particularly in Asia and Latin America. To protect these interests, the United States has adopted the “Open Door Policy” in China, advocating equal access to Chinese markets for all nations. This policy aimed to safeguard American economic interests and expand US influence in the Asia-Pacific region. Theodore Roosevelt and the Roosevelt CorollaryDuring the presidency of Theodore Roosevelt (1901-1909), American imperialism took on a more assertive tone with the formulation of the Roosevelt Corollary of the Monroe Doctrine. This policy asserted the right of the United States to intervene militarily in Latin American countries to maintain stability and protect American investments. U.S. military interventions in countries such as Cuba, the Dominican Republic, and Nicaragua exemplified this approach, often provoking resentment and anti-American sentiment in the region. World War I and Global Influence World War I marked a significant shift in American imperialism. The United States entered the war in 1917 and emerged as a global superpower after the conflict. President Woodrow Wilson's vision of a "League of Nations" reflected a desire to shape the postwar world order and promote democratic ideals. Although the U.S. Senate did not ratify the Treaty of Versailles or join the League of Nations, this period marked increased U.S. involvement in international affairs and its aspiration to exert influence beyond its borders. The Cold War EraThe Cold War Era brought a new dimension to American imperialism as the U.S..