What territory, purchased in 1867, added resources and strategic position to the United States and was later valued for its timber and oil?
Alaska.
Which sensationalist style of reporting helped inflame U.S. public opinion against Spain in 1898?
Yellow journalism.
Panama Canal.
Lusitania.
Espionage Act and Sedition Act.
Name the policy that stated the U.S. would protect its interests in the Western Hemisphere and sometimes intervene in Latin American countries (linked to Roosevelt).
Roosevelt Corollary / Roosevelt’s Big Stick Diplomacy.
USS Maine.
Theodore Roosevelt.
Unrestricted submarine warfare.
Great Migration.
What was one major argument in favor of American imperialism at the turn of the 20th century?
Economic markets, naval power/strategic bases, “civilizing” missions.
Philippines and Puerto Rico (also Guam).
Yellowstone (or Yosemite).
Zimmerman (Zimmermann) Telegram.
Tanks, airplanes, chemical weapons.
Explain how acquiring overseas territories affected the geographic reach of the United States (give one specific example).
U.S. control of territories increased global naval reach (Panama Canal shortened route between oceans).
Example: sparked anti-imperialist movement, guerrilla war in Philippines, long-term U.S. presence in Asia.
Open Door Policy sought equal trade access in China.
General John J. Pershing.
19th Amendment (women’s suffrage).
Analyze how the debate over annexing the Philippines after the Spanish-American War reflected differing views about American identity and international role.
Annexing the Philippines raised debate over imperialism vs. self-determination and led to the Philippine‑American War.
Roosevelt gained fame with Rough Riders, later used Big Stick to secure Panama Canal and project U.S. power.
Strategic advantages: faster military redeployment, reduced shipping time, control of a vital maritime chokepoint.
Unrestricted submarine warfare resumed in 1917 (threatening U.S. ships), Zimmerman Telegram revealed German attempt to involve Mexico, plus cumulative attacks on shipping and economic ties to Allies.
Sample analysis: Technological advances (tanks, planes) changed future combat; social tensions included labor unrest and race conflicts as returning soldiers competed for jobs and wartime restrictions (Espionage/Sedition Acts) affected civil liberties.