Book excerpt: Governance failures, combined with 21st-century social, economic, environmental and demographic conditions, have all contributed to paving the way for the rise of highly heterogeneous non-state and quasi-state actors in the Middle East. Has the state, then, been irremediably undermined, or will the current transition lead to the emergence of new state entities? How can the crumbling of states and the redrawing of borders be reconciled with the exacerbation of traditional inter-state competition, including through proxy wars? How can a new potential regional order be framed and imagined? This volume provides a historical background and policy answers to these and a number of other related questions, analysing developments in the region from the standpoint of the interplay between disintegration and polarization.