U.S. and Japanese Imperialism: Origins and Expansionism

U.S. Imperialism and Expansionism

U.S. expansionism emerged as a response to intense European protectionism. The difficulties imposed by tariffs on American products fostered the belief that the nation needed to establish relationships with new areas to secure markets for its goods. This policy was built upon ideological foundations, specifically Social Darwinism, which promoted the idea that the U.S. had to compete with other nations to survive. Furthermore, the Monroe Doctrine solidified the opinion that the U.S. should intervene to defend its interests throughout the American continent.

Strategic Interests and Colonialism

Consequently, U.S. expansionist policy was oriented toward the Caribbean, Central and South America, and the Pacific. Strategic goals included:

• Securing naval bases on islands to protect trade routes to Asia.
• The 1867 purchase of Alaska from Russia to control the Bering Strait.

This form of colonialism was characterized by interference in the internal affairs of other countries and the economic subjugation of native governments. The Spanish-American War (1898) regarding Cuba and the Philippines illustrates this policy. Following Cuba's declaration of independence, the United States passed the Platt Amendment in 1903, allowing for the establishment of a naval base and the right to intervene to preserve Cuban independence.

Japanese Expansionism

Following the Meiji Restoration, Japan ended 256 years of feudalism under the Shogunate and began a rapid economic modernization modeled after the West. This growth was driven primarily by the state, transforming Japan into an imperialist power.

Regional Ambitions in Asia

Japanese expansionism was directed toward the Asia-Pacific region to procure food and raw materials for its textile industry, as well as to establish defensive buffers against China and Russia. Korea and Manchuria became primary targets:

• 1876: Japan intervened in Korea, then a vassal of China, provoking the First Sino-Japanese War (1894–1895).
• Victory: Japan gained control of Formosa, Port Arthur, and the Liaotung Peninsula, though it was forced to relinquish the latter due to Western pressure.
• 1905: Japan declared war on Russia over Manchuria. Its military victory, combined with U.S. mediation, allowed Japan to consolidate control over Korea and southern Manchuria, establishing itself as a power equal to Western nations in the Pacific.