ABSTRACT The common claim that American foreign policy is “imperial” is contradicted by the fact that the actual, definable historical empires have characteristically exercised formal, as well as decisive, control over their peripheral dependencies—properties that the keenest analysts do not ascribe to the geopolitical system that has been constructed by the United States. Why, then, the ascription of “empire” to the United States? One reason is to condemn American foreign policy by linking it to the unjust, destructive, and self‐destructive tendencies (...) that are held to be inherent in a nation’s quest for, and maintenance of, “empire.” The variant of this anti‐imperial thesis that has been the special province of certain conservatives and libertarians appropriates the “empire” thesis to invent non‐security motives for American foreign policies, and correspondingly to denigrate security threats to the United States. Yet—ironically—as with the more characteristic left‐wing anti‐imperialism, the conservative‐libertarian version exemplifies a cultural dimension of the strategic situation of the United States: Far from being an “empire,” or even an accomplished hegemon, America is better described (metaphorically) as the object of a multi‐pronged “siege.”. (shrink)