At the conclusion of the North Atlantic Treaty Organization's 1999 air campaign against the Federal Republic of Yugoslavia (Savezna republika Jugoslavije: SRJ) the United States publicly committed itself to a policy of regime change towards the Belgrade government presided over by Yugoslav president Slobodan Milosevic. In addition, the May 1999 indictment of Milosevic by the International Criminal Tribunal for the former Yugoslavia for crimes against humanity marked an unprecedented act of judicial intervention that challenged hitherto dominant conceptions of the norm of Westphalian sovereignty. Those acts – state promotion of regime change and the indictment of a sitting head of state by an international criminal tribunal – both require an examination of the role of external agency in either bringing about or acting as a catalyst for regime change. The Milosevic regime attempted to use the Westphalian notion of sovereignty to fend off external pressure; events leading to the regime change of October 2000...