The apocalypse is a motif that lies behind many religious beliefs and practices. 'War in Heaven/Heaven on Earth' theorizes the apocalyptic as it has arisen in a variety of religious traditions, from Native American religion to Islam in Northern Nigeria and new terrorist movements. Millennial theory and history are explored from the perspective of social psychology, sociology and post-modern philosophy. The volume is unique in applying an analysis of millennial themes to a comparative study of religion.