Nationalism and the prevalence of ethnic conflict are features of contemporary politics. Many commentators have viewed such conflicts as a return to some primitive impulse. Andreas Wimmer's book argues that nationalism is in fact characteristic of the modern world, deriving from the nature of the state. He argues that the nation-state rests on membership of a particular ethnic or national group, and the exclusion of non-members, creating the potential for conflict. Containing detailed studies of Mexico, Iraq and Switzerland, this is an original contribution to a topical debate.