Most Americans have been inoculated against the notion that our country can behave like an empire. Therefore, some readers may well find the focus on empire unsettling. After all, we are regularly reminded by our politicians, clergy, teachers, and the media that the U.S. is an exceptional country. We don't do empire. That's for the bad guys. We like to believe that whatever America does internationally is for the common good of humanity. As authors, all we ask is that readers consider our general definition of empire on its historical merits and give our treatment...