Book excerpt: This work deals with the question of unlawful territorial situations, i.e. territorial regimes that are established and maintained in defiance of international law.The book represents a welcome contribution to an issue of the outmost importance in international affairs at present times. It brings together elaborate theoretical discussion and thorough empirical research. Students of international law, practitioners, and anyone interested in deepening the understanding of the role and relevance of international law to territorial occupation will greatly benefit from this study.