The linchpin of an empire is the link between two elites, one in the imperial center and the other in the peripheries. Symmetric alliances exist, but not with a superpower in the center. The periphery elites do jobs for the center: killing, say, in Libya, Syria, when so wanted; securing the center economic interests in return for a substantial cut, serving as a bridgehead culturally–called americanization–delivering obedience against protection. For this to work the elites have to believe in the empire. They put words up front–like democracy, human rights, rule of law–serving as human shields. However, the costs may be heavy, the benefits decreasing; they may have difficulties with restless students, working classes, other countries. Or worse: they may sense that the empire is not working, heading for decline and fall, and want to get out. And even if this is not the case, the US elites – the policy...