US Imperialism

Imperialism

A policy in which a country extends its power by acquiring territories or influencing other nations economically, politically, or militarily.

New Imperialism

Late 19th–early 20th century expansion by European powers (and the U.S.) into Asia and Africa, focused on economic control, naval power, and global markets.

Panic of 1893

A severe economic depression that led to 15,000 business failures and 17% unemployment.

Alfred Thayer Mahan

An influential military strategist who argued the U.S. needed a strong navy, overseas bases, and control of sea routes.

Teller Amendment

Promised the U.S. would not annex Cuba after the Spanish-American War.

Platt Amendment

Allowed U.S. intervention in Cuba and established a naval base at Guantanamo Bay.

Foraker Act

Declared Puerto Rico an 'insular territory' with no path to statehood.

Insular Cases

Supreme Court ruled that full constitutional rights did not automatically apply to U.S. territories.

Philippine-American War (1899–1903)

Conflict resulting from U.S. acquisition of the Philippines, characterized by significant loss of life and resistance.

Yellow Journalism

Sensationalized news reporting that intensified public sentiment against Spain during the Spanish-American War.

Anti-Imperialism

Opposition to imperialism, arguing that empire contradicts democracy and violates American ideals.

Pro-Imperialism

Support for imperialism, believing it was benevolent and a duty to civilize while providing access to new markets.