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 world.This second edition of Historical Dictionary of U.S. Diplomacy from the Civil War to World War I contains a chronology, an introduction, appendixes, and an extensive bibliography. The dictionary section has over 1,000 cross-referenced entries on important personalities, politics, economy, foreign relations, religion, and culture. This book is an excellent access point for students, researchers, and anyone wanting to know more about diplomacy during this period.