US History - Unit 6 - American Imperialism

Imperialism

A policy in which a stronger nation takes control of weaker regions for economic, political, or military gain. In the late 1800s, the U.S. expanded its influence overseas. Imperialism increased American involvement in global affairs.

Mexican-American War (1846–1848)

A conflict between the U.S. and Mexico sparked by disputes over Texas and expansion. The U.S. victory resulted in gaining large western territories through the Treaty of Guadalupe Hidalgo. The new land intensified debates over slavery and national growth.

Annexation of Hawaii (1898)

The U.S. takeover of Hawaii after American planters overthrew the Hawaiian monarchy. Hawaii became a key naval and economic location in the Pacific. Annexation marked a major step in American imperial expansion.

Yellow Journalism

Sensational and exaggerated newspaper reporting used to attract readers. During the 1890s, it stirred public support for war with Spain by dramatizing events in Cuba. Yellow journalism influenced Americans to back the Spanish-American War.

Spanish-American War (1898)

A short war between the U.S. and Spain sparked by Cuban independence struggles and yellow journalism. The U.S. won and gained territories such as Puerto Rico, Guam, and the Philippines. The victory marked the rise of the U.S. as a global power.

Philippine-American War (1899–1902)

A conflict between the U.S. and Filipino fighters who opposed American control after the Spanish-American War. The war was long and brutal, and the U.S. eventually took control of the Philippines. It raised debates about American imperialism and democracy.

Woodrow Wilson

U.S. president during World War I who promoted the idea of spreading democracy and moral diplomacy. Wilson believed the U.S. should support nations with similar values rather than pursue territorial expansion. His foreign policy still increased American involvement overseas.