Consider the American Empire of the late nineteenth and early twentieth centuries.

Consider the American Empire of the late nineteenth and early twentieth centuries. Citing specific examples, discuss the expansion of American influence across North America, Latin America, and Asia during this period.  How have various leaders justified America’s domination of underdeveloped regions of the world?  What was the impact of America’s Manifest Destiny?  Please focus your answer on the period 1862-1914.