America Becomes a World
11.1.4. Examine the effects of the Civil War and Reconstruction
and of the industrial revolution, including demographic shifts
and the emergence in the late nineteenth century of the United
States as a world power.
11.4 Trace the rise of the United States to its role as a world power
in the twentieth century.
Imperialism: A Primer
Imperialism: To expand, to take over another country, to extend
positive/negative influence into another country, to exploit another
country for resources.
Isolationism: To withdraw from foreign affairs, to focus on domestic
Foreign Policy: The way one country interacts with another country,
diplomacy, working out economic, militaristic, and cultural exchange;
usually focuses on war, border disputes, immigration, and trade.
Domestic Policy: The way one country deals with itself and its own
people; usually deals with employment, education, elderly care,
crime, civil rights, cultural issues.
Nationalism: The feeling of pride in one’s own country, extreme
patriotism; usually denotes the idea that one’s country is infallible and
better than any alternative.
Self-Determination: The ability for one country to decide its own
fate, conduct, behavior, and diplomacy with the intervention of a
Why would one country take over
What are the benefits of taking over
What are the downsides of taking over
What reactions would the natives of
that other country have to being taken
Arguments For Imperialism
Foreign Imperialism World
and Spread Sell Opportunities
Immigration Difficult to
Immigrants Funda mentally
The U.S. Takes Sides
Big Business: Looking for Minorities: Marginalized
new markets to sell groups who want domestic
manufactured items; find security before foreign
cheap labor involvement
War Hawks: Congressmen Isolationists:
looking to spread U.S. Congressmen who consider
influence overseas the U.S. unprepared for full-
Executive Branch: scale foreign involvement
President seeking to define Nativists: Americans who
the U.S. as a “world power” find no reason to participate
A Timeline of Territorial
Becoming the “United” States
1776: The Declaration of Independence
1783: The Treaty of Paris --Great Britain cedes lands up to the Miss.
1803: The Louisiana Purchase --Doubles the size of the U.S.,
purchased for $15 million
1830: Oklahoma and Michigan Territories --Aquired after the Indian
Wars, through genocide and relocation
1848: The Mexican Cession --Won after the Mexican-American War,
included the Southwest, California, and Texas
1853: The Gadsden Purchase --Bought from Mexico, the last piece
of the continental U.S.
1867: Alaska --Purchased by William Seward for $7.2 million from
Russia, called “Seward’s Icebox” and “Seward’s Folly”, later to yield
some of the riches oil reserves in the U.S.
1893: Hawaii --Taken as a “protectorate” after the U.S. started a civil
Benefits of Territorial Problems of Territorial
Expand American influence Territorial expansion
Provide land to a growing caused slavery to spread
population (and Civil War to start)
Gain rich agricultural lands Difficult to manage large
and natural resources territory (enforce laws,
Secure borders against communicate, send mail,
foreigners (Britain, Spain, trade, etc.,)
Russia, etc) Caused intense friction
Gain needed ports for between the U.S. and other
further expansion nations (including Native
The War of 1812
The Indian Wars
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The Mexican-American War
The American Civil War
Is there such a thing as a “just war”?
Under what conditions is war O.K.?
What is it good for?
WAR WOUNDED DEAD COST
Revolutionary War 6,100 4,500 $3.2 Billion
War of 1812 4,500 2,300 $1 Billion
Mexican-American War 4,100 13,200 $1.8 Billion
Civil War 413,000 553,600 $72 Billion
Spanish-American War 1,700 2,500 $6.5 Billion
World War I 204,000 116,500 $588 Billion
World War II 671,000 408,000 $4.8 Trillion
A Comparative Look
What accounts for the difference in
wounded, dead, and cost of war?
Identify 3 factors.