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policy of powerful countries seeking to control the economic and political affairs of weaker countries or regions.


The adding of a region to the territory of an existing political unit.


the policy of expanding a nation's boundaries

Sphere of Influence

area in which a foreign nation had special trading privilages and made laws for its own citizens.

Rugged Individualism

The belief that all individuals, or nearly all individuals, can succeed on their own and that government help for people should be minimal.

Alfred T. Mahan

A leading supporter of American Imperialism. He was a captain in the U.S. navy and supported foreign trade (interested in gaining sea territories to expand navy)

The Great White Fleet

A group of white ships that displayed the U.S. naval power.

Boxer Rebellion

A 1900 Uprising in China in which, "Boxers" attacked/killed foreigners all over China. (Opposed foreign influence)


Queen of Hawaii who wanted to reduce foreign influence, regain full independence, and stop the current annexation. She was overthrown by American planters.

Yellow Journalism

Journalism that sensationalizes information to get people to act.

Treaty of Kanagawa

Treaty opened two trading-ports in Japan and ruled ship-wrecked sailors must be helped.

White Man's Burden

That the white man has the obligation to help/civilize those around him that are inferior. (All races except for white)

"The Real White Man's Burden"

The truth is that America is only spreading their corrupt culture and taking countries over.


Intense and sometimes violent patriotism

Foraker Act of 1900

provided Puerto Rican legislature (government) elected by the people. (U.S. Act)

Open Door Policy

policy toward China that allowed a nation to trade in any other nation's sphere of influence (1899)


truce; an agreement to stop fighting

The U.S.S. Maine

American battleship that blew up in Cuba, and ultimately started the Spanish - American War of 1898 ("To hell with Spain! Remember the Maine!")

The Platt Amendment

An amendment that stated the U.S. must approve all Cuban treaties with other nations. It also allowed the U.S. to intervene in Cuba to preserve "peace" and "order". U.S. retained naval bases in Cuba.

"Big Stick" Diplomacy (Long Definition)

Diplomatic policy developed by T.R where the "big stick" symbolizes his power and readiness to use military force if necessary. It is a way of intimidating countries without actually harming them and was the basis of U.S. imperialistic foreign policy. OR: America is like a police force in the Western Hemisphere that will use violence if necessary but hopes to only intimidate other countries to stay away from their land or "territory".

Dollar Diplomacy

President Taft's policy of linking American business interests to diplomatic interests abroad. Spreading American influence/control through economics.

Moral Diplomacy

President Wilson's policy to condemn imperialism - To spread democracy, and promote peace.

Monroe Doctrine

An American foreign policy opposing interference in the Western hemisphere (or the "Americas") from outside powers

Roosevelt Corollary to the Monroe Doctrine

Roosevelt's 1904 extension of the Monroe Doctrine, stating that the United States has the right to protect its economic interests in South And Central America by using military force, OR: Addition to the Monroe Doctrine asserting America's right to intervene in Latin American affairs


Nation whose independence is limited by the control of a more powerful country, OR , a state, territory, or nation partly controlled by (but not a possession of) a stronger state/country but autonomous in internal affairs

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