American Imperialism is the late-19th and early-20th century U.S. policy of acquiring overseas territories and extending economic, military, and cultural influence abroad, justified by economic opportunity, racial theories, naval strategy, and the 1890s idea that the western frontier had closed.
American Imperialism is the U.S. turn outward in the 1890s and early 1900s, when the country started acquiring overseas territories (Hawaii, the Philippines, Puerto Rico, Guam) and projecting power abroad instead of just expanding across the continent. The CED gives you the imperialists' four big justifications (KC-7.3.I.A): economic opportunities in new markets, racial theories like Social Darwinism and the "civilizing mission," competition with European empires carving up Africa and Asia, and the perception that the western frontier had "closed" after the 1890 census.
Just as important for AP purposes is the pushback. Anti-imperialists (KC-7.3.I.B) argued the U.S. shouldn't extend its territory overseas, citing self-determination, the American tradition of isolationism, and (uncomfortably) racial theories of their own about absorbing non-white populations. The imperialism debate is really a debate over the nation's identity. Can a republic founded on consent of the governed rule colonies without their consent? That tension is exactly what Topic 7.2 asks you to explain.
This term anchors Topic 7.2 (Imperialism: Debates) and learning objective APUSH 7.2.A, which asks you to explain similarities and differences in attitudes about the nation's proper role in the world. But it doesn't live in Unit 7 alone. It's the payoff of a long arc the CED traces from the Monroe Doctrine and continental expansion in Unit 4 (APUSH 4.4.A), through Gilded Age industrial capitalism's hunt for markets in Unit 6 (APUSH 6.14.A), into Cold War interventions in Latin America and the developing world in Unit 8 (APUSH 8.7.A). That makes American Imperialism one of the best continuity-and-change threads in the whole course, and continuity-and-change is the skill DBQs and LEQs reward most.
Keep studying APUSH Unit 7
Manifest Destiny (Unit 4)
Manifest Destiny is the dress rehearsal for imperialism. The same belief that Americans were destined to spread their institutions drove expansion to the Pacific in the 1840s, then jumped the ocean in the 1890s. A continuity essay connecting these two is classic APUSH.
Spanish-American War (Unit 7)
The 1898 war is imperialism in action. Victory over Spain handed the U.S. the Philippines, Puerto Rico, and Guam, turning the abstract debate about empire into a real one about governing actual colonies.
Alfred Thayer Mahan (Units 6-7)
Mahan's The Influence of Sea Power upon History argued that great nations need strong navies, overseas bases, and coaling stations. His book gave imperialists their strategic blueprint and helps explain why the U.S. wanted Hawaii and Pacific islands in the first place.
Cold War interventions in Latin America (Unit 8)
The CED notes the U.S. supported non-Communist regimes in Latin America with 'varying levels of commitment to democracy' (APUSH 8.7.A). That's the 20th-century echo of imperialism, where influence comes through covert action and client states instead of formal colonies.
Imperialism questions love stimulus sources, especially political cartoons. Practice questions in this area use Louis Dalrymple's "Ten Thousand Miles from Tip to Tip" (the giant eagle stretching from Puerto Rico to the Philippines) and eagle imagery after the Spanish-American War, asking you to read the cartoonist's point of view about American expansion. Mahan's sea power argument also shows up as a cause-and-effect MCQ. For free response, no released FRQ has used "American Imperialism" verbatim, but the term is tailor-made for continuity-and-change prompts about U.S. foreign policy. The strongest move is contextualizing 1890s imperialism with earlier expansion (Monroe Doctrine, Manifest Destiny) or later interventionism (Cold War), and being able to argue both the imperialist and anti-imperialist positions with specific evidence.
Manifest Destiny (Unit 4, roughly 1840s) is continental. It's about claiming contiguous North American territory like Texas, Oregon, and the Mexican Cession, with the expectation that those lands become states with full citizens. American Imperialism (Unit 7, 1890s+) is overseas. The U.S. acquired non-contiguous colonies like the Philippines and Puerto Rico that were ruled, not absorbed as equal states. Same expansionist ideology, different geography and different relationship to the people being governed. On the exam, treat Manifest Destiny as evidence of continuity leading INTO imperialism, not as a synonym for it.
American Imperialism refers to the U.S. acquiring overseas territories and influence in the 1890s and early 1900s, with the Spanish-American War of 1898 as the turning point.
Imperialists justified expansion with four CED-listed arguments: economic markets, racial theories, competition with European empires, and the perceived closing of the western frontier (KC-7.3.I.A).
Anti-imperialists pushed back using self-determination, the isolationist tradition, and their own racial arguments, so know both sides for APUSH 7.2.A (KC-7.3.I.B).
Imperialism is a continuity story, not a sudden break. It extends the expansionism of the Monroe Doctrine and Manifest Destiny (Unit 4) and the market-hungry industrial capitalism of the Gilded Age (Unit 6).
The pattern continues into Unit 8, where Cold War America projected power through interventions and client regimes in Latin America rather than formal colonies.
Expect imperialism to appear as political-cartoon stimulus MCQs and as evidence in continuity-and-change essays about U.S. foreign policy.
It's the late-19th and early-20th century U.S. policy of acquiring overseas territories (like Hawaii, the Philippines, and Puerto Rico) and extending economic and military influence abroad. It's the core of Topic 7.2 and learning objective APUSH 7.2.A.
No. Manifest Destiny was continental expansion in the 1840s, where new land was expected to become states. Imperialism in the 1890s meant overseas colonies that were ruled without full citizenship or statehood. The exam treats Manifest Destiny as a precursor that shows continuity, not as the same thing.
The CED lists four reasons: economic opportunities in foreign markets, racial theories claiming Americans were destined to spread their culture, competition with European empires, and the 1890s perception that the western frontier was closed. Mahan's sea power argument added a strategic push for naval bases.
No, it was hotly contested. Anti-imperialists, including the Anti-Imperialist League founded in 1898, argued that ruling colonies violated self-determination and broke with the U.S. tradition of isolationism. You need to explain both sides for APUSH 7.2.A.
Yes. It anchors Topic 7.2 in Unit 7 and commonly appears in political-cartoon stimulus questions, like ones using Dalrymple's eagle cartoon after the Spanish-American War. It's also strong evidence for continuity-and-change essays spanning Units 4 through 8.
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