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Isolationism arose in the earliest years of this nation's history. George Washington stated that "our true policy" is "to steer clear of permanent alliances with any portion of the foreign world".
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President James Monroe stated in a speech that "any attempt on their part to extend their system to any portion of this hemisphere as dangerous to our peace and safety"
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Secretary of State John Hay announced this policy that promoted equal trade access for all nations, and demanded that China's independence and sovereignty over its own territory be preserved.
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Franklin Roosevelt's attempt to make friends with the southern nations. He did this through reducing U.S. political and military intervention.
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America hoped to forge a world community in which at least most nations would agree to act together against any nation that threatened the peace. A collective security to keep international peace and order. Because the power of judicial review can declare that laws and actions of local, state, or national government are invalid if they conflict with the Constitution.
http://www.un.org/en/sections/history/history-united-nations/ -
President Truman stated " the policy of the United States to support free peoples who are resisting attempted subjugation by armed minorities or by outside pressures."
https://history.state.gov/milestones/1945-1952/truman-doctrine -
President Richard Nixon flew to Beijing to pave the way for further contacts and formal diplomatic ties between the US and the People's Republic of China.
http://www.americaslibrary.gov/jb/modern/jb_modern_nixchina_1.html -
The strategy of maintaining military might at so great a level that the very strength will deter an attack on the U.S.
http://foreignpolicy.com/2012/10/05/deterrent-effect/ -
Active involvement of President Carter in Israel and Egypt, led to the negotiation of Camp David Accords. This led to more than 30 years of hostilities between Israel and Egypt.
https://history.state.gov/departmenthistory/short-history/carter -
Americans believed they had a right to pursue their manifest destiny to expand their country from the east coast all the way to the Pacific Ocean