The influx of refugees, asylum seekers, and other international migrants is increasingly regarded not only as a major humanitarian challenge but also as a political problem and a threat to national and international security.

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The full range of U.S. foreign policy issues must be involved, beyond those concerning refugees and migration policies alone. Can U.S. aid, trade, and investment policies affect the exodus of illegal migrants from sending countries? Can U.S. population and environmental policies have an impact? Current developments in Bosnia and Rwanda reveal just how urgent these issues are as experts in the field show in these timely and thought-provoking essays.