Defined as "the construction of an asymmetric alliance designed to exert maximum control over the smaller ally’s actions," powerplay mainly describes the relations between the U.S. and Taiwan, South Korea, and Japan like that of the hub and spokes system which aimed to contain the Soviet threat, but the main rationale was to constrain potential "rogue allies"—that is, "rabidly anticommunist dictators who might start wars for reasons of domestic legitimacy that the United States wanted no part of as it was gearing up for a protracted global struggle against the Soviet Union."