The conflicts that culminated in the First and Second World Wars had their origins in the rise of imperial powers in North America, Europe, and Asia in the late nineteenth century and the imperialist quests for the resources of colonies and former colonies. American expansionists, encouraged by a growing U.S. Navy, nurtured U.S. policies with illusions of easy access to South America. Policy makers in the fledgling empires of Germany, Japan, Spain, and Italy relied on clandestine means to rival U.S. ambitions. In this original and thoroughly researched book, based on new sources from...