In some parts of the world, ethnically and culturally divided states, such as Yugoslavia, Russia, and Indonesia, have been fragmenting, while in Western Europe states are transferring sovereign powers to an emerging superstate, the European Union. Yet despite these opposing movements, governments throughout the world are simultaneously endorsing the idea of "global governance" by international organizations with regulatory and law-enforcement powers that may supersede a state’s domestic laws. The United States, however, has thus far remained loyal to its own political traditions of popular sovereignty and constitutional government. How will the new administration approach new ventures in global governance? What will the implications be for the U.S. system of government and the choices made by other countries? This second annual AEI conference on American sovereignty will explore the emerging challenges to national sovereignty posed by the enlarged ambitions of international law.