I just finished reading Dominic Tierney's new book How We Fight: Crusades, Quagmires and the American Way of War. As the title suggests, he presents the standard American exceptionalism argument about why and how the US begins wars -- that both the public and elites hold deeply entrenched beliefs of America's "benign power" to transform the world. But, these same wars often end when the public and elites turn against these "crusades" after...