<span>Isolationism in America was based on two beliefs. The first was the view that the United States should avoid any political commitment that tied American policy and action to the policies and actions of other nations. The second was a pervasive belief that the central aim of American foreign policy was to avoid foreign wars at all costs. </span>
The Mongols invaded and introduced Islamic law.was not a result of the collapse of the Western Roman Empire and that is the proper answer for that question <span>
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the articles of confederation was a very weak constitution for the government
