In this timely work, Robert J. Pauly, Jr. looks in detail at the impact of Islam’s presence in Europe. He examines five areas of particular importance: the effect of the growth of Muslim communities on the demographics of Western Europe generally, and France, Germany and the United Kingdom in particular; the consequences of the marginalization of Muslims on domestic and international security within and outside of Western Europe in the post-11 September 2001 era; the impact of the issue of Islam in Europe on the European Union’s ongoing deepening and widening processes; the potential correlation between the increased visibility of Islam in Europe and the growth of far-right political parties across the continent; and the broader relationships between the issues of Islam in Europe, Islam and Europe, and Islam and the West.