The A to Z of U.S. Diplomacy from the Civil War to World War I provides a convenient introduction to a critical period of American diplomacy. The half-century from 1861 to 1914 formed a crucial time in the development of the American approach to the world, for the United States laid the foundations for its 20th century foreign policy. While the famed Monroe Doctrine insisted that no foreign power meddle in the American continent, it did not stop the U.S. from waging war against Spain, mixing in conflicts in Cuba, Chile, and Mexico, nor in backing independence for Panama, all the while...

The period encompassed by this volume with the start of the Civil War and World War I as bookends has gone by a number of colorful names: The Imperial Years, The New American Empire, America s Rise to World Power, Imperial Democracy, The Awkward Years, or Prelude to World Power, for example. A different organizing theme would describe the period as one in which a transformation took place in American foreign relations. But whatever developments or events historians have emphasized, there is general agreement that the period was one in which something changed in the American approach to the...