How did US foreign policy expand American power in Latin America and Asia after 1898?
Explain how the United States exercised its new power through the Panama Canal, the Roosevelt Corollary and big stick diplomacy, dollar diplomacy, and the Open Door Policy in China (Ohio's Learning Standards for Social Studies, American History, Foreign Affairs from Imperialism to Post-World War I).
A standard-level answer on early US foreign policy for Ohio's American History EOC: the Panama Canal, the Roosevelt Corollary to the Monroe Doctrine, big stick and dollar diplomacy in Latin America, and the Open Door Policy in China, showing how 1898 turned the United States into a world power.
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What this topic is asking
After 1898 the United States was a world power, and this part of the Foreign Affairs topic asks how it used that power: in Latin America (the Panama Canal, the Roosevelt Corollary, big stick and dollar diplomacy) and in Asia (the Open Door Policy in China). These cases show the new American role the Ohio standards stress.
Power in Latin America
The Caribbean and Central America became the main stage for the new American power.
- The Panama Canal (completed 1914). The United States wanted a canal to move ships and the navy quickly between oceans. After Colombia refused terms, the United States backed a Panamanian revolt, recognized the new nation of Panama, and gained the Canal Zone. The canal was a huge engineering feat and a strategic prize.
- Big stick diplomacy. Roosevelt's motto, "speak softly and carry a big stick," meant backing diplomacy with the threat of military force (a strong navy).
- The Roosevelt Corollary (1904). An addition to the Monroe Doctrine, it claimed the United States could intervene in Latin American nations to keep order and protect US interests, making the United States the region's "police."
- Dollar diplomacy. Under President Taft (also an Ohioan), the United States used investment and loans to expand influence in Latin America and Asia.
Power in Asia: the Open Door
The United States wanted access to the huge China market but arrived late, after European powers had carved out spheres of influence. Secretary of State John Hay issued the Open Door Policy (1899 to 1900):
- All nations should have equal trading rights in China.
- China's territory and independence should be preserved.
This protected American trade without seizing Chinese land. When the anti-foreign Boxer Rebellion (1900) broke out, the United States joined other powers to suppress it and reaffirmed the Open Door.
Why this matters for the EOC
This topic rewards vocabulary (big stick diplomacy, dollar diplomacy, Open Door, Monroe Doctrine and its Corollary), cause and effect (why a canal, why the Open Door), and map skills (the canal's strategic location). The standards' key point is that after 1898 the United States actively projected power in its hemisphere and across the Pacific, a habit that shaped its entry into World War I and beyond.
Try this
Q1. What was the purpose of the Panama Canal, and how did the United States obtain the Canal Zone? [2]
- Cue. To move ships and the navy quickly between the Atlantic and Pacific; the United States backed Panama's revolt from Colombia to gain the zone.
Q2. What did the Open Door Policy call for in China? [2]
- Cue. Equal trading rights for all nations and the preservation of China's territory and independence.
Exam-style practice questions
Practice questions written in the style of ODEW exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Ohio American History EOC1 marksThe Open Door Policy was a US effort to (A) close trade with China. (B) keep China open to trade for all nations. (C) annex China. (D) build the Panama Canal.Show worked answer →
A 1-point multiple-choice item on foreign policy.
The correct answer is B. The Open Door Policy (1899 to 1900) called for all nations to have equal trading rights in China and for China's territory to be preserved, protecting US access to the China market.
A and C are the opposite; D is unrelated. The test rewards knowing the Open Door Policy protected US trade access to China.
Ohio American History EOC2 marksPresident Theodore Roosevelt said the United States should 'speak softly and carry a big stick.' (a) What does big stick diplomacy mean? (b) Give one example of US action in Latin America that fits it.Show worked answer →
A 2-point constructed-response item on foreign policy.
(a) 1 point: using the threat of military force (a strong navy) to back up diplomacy and get one's way in foreign affairs.
(b) 1 point: any one valid example, such as building the Panama Canal (backing Panama's revolt from Colombia), or the Roosevelt Corollary asserting US power to intervene in Latin America. Scorers reward defining big stick diplomacy plus a Latin American example.
Related dot points
- Explain the causes of American imperialism, the Spanish-American War of 1898, the acquisition of overseas territories, and the debate between imperialists and anti-imperialists (Ohio's Learning Standards for Social Studies, American History, Foreign Affairs from Imperialism to Post-World War I).
A standard-level answer on American imperialism for Ohio's American History EOC: the economic, strategic, and ideological causes, the Spanish-American War of 1898, the acquisition of the Philippines, Puerto Rico, and Guam, the annexation of Hawaii, and the imperialist versus anti-imperialist debate, with Ohio's President McKinley.
- Explain the causes of World War I, the reasons the United States abandoned neutrality and entered the war, and the major contributions of American forces (Ohio's Learning Standards for Social Studies, American History, Foreign Affairs from Imperialism to Post-World War I).
A standard-level answer on US entry into World War I for Ohio's American History EOC: the MAIN causes of the war, American neutrality, the reasons for entry (submarine warfare, the Lusitania, the Zimmermann Telegram), and the impact of American forces on Allied victory.
- Explain the World War I home front, including mobilization, propaganda, limits on civil liberties, and the Great Migration, and the failed peace through Wilson's Fourteen Points, the Treaty of Versailles, and the rejection of the League of Nations (Ohio's Learning Standards for Social Studies, American History, Foreign Affairs from Imperialism to Post-World War I).
A standard-level answer on the World War I home front and peace for Ohio's American History EOC: war mobilization and propaganda, limits on civil liberties (the Espionage and Sedition Acts, Schenck v. United States), the Great Migration, Wilson's Fourteen Points, the Treaty of Versailles, and the US rejection of the League of Nations.
- Explain the US return to isolationism after World War I and the postwar unrest, including the first Red Scare, labor strife, racial violence, and the rise of nativism in the early 1920s (Ohio's Learning Standards for Social Studies, American History, Foreign Affairs from Imperialism to Post-World War I).
A standard-level answer on the postwar years for Ohio's American History EOC: the return to isolationism after World War I, the first Red Scare and the Palmer Raids, the labor strikes and racial violence of 1919, the revived Ku Klux Klan, the Sacco and Vanzetti case, and the new immigration quotas.
- Explain the rise of Progressivism in response to industrialization, the muckrakers, the reforms of Theodore Roosevelt and Woodrow Wilson, and the expansion of government regulation of the economy (Ohio's Learning Standards for Social Studies, American History, Industrialization and Progressivism).
A standard-level answer on the Progressive movement for Ohio's American History EOC: the response to industrialization, muckrakers like Sinclair and Tarbell, Theodore Roosevelt's Square Deal and trust-busting, Woodrow Wilson's New Freedom, and the expanding role of government, with Ohio's reform mayors.
Sources & how we know this
- Ohio's Learning Standards for Social Studies — Ohio Department of Education and Workforce (2019)
- American History (High School State-Tested Courses Resources) — Ohio Department of Education and Workforce (2024)