InternationalnucleararmscontrolregimeshavechangedandimprovedgreatlysincetheendoftheColdWar.Theseregimesarenowbeingadjustedbasedontheconceptof'anuclear-freeworld',withChinaplayingaconstructiverole.AlthoughtheseadjustmentsprovideChinawiththeopportunitytoplayamoreinfluentialpart,theyhavealsoplacedherundergreaterdiplomaticpressure.