Between States is the first book that assesses systematically the broad implications of interim governments in the establishment of democratic regimes and on the existence of states. Based on historical and contemporary democratisation experiences, the book presents four ideal types of interim government: opposition-led provisional governments, power-sharing interim governments, incumbent-led caretaker governments, and international interim government by the United Nations. The first part explores the theoretical problems of each of these models from a broad comparative perspective. It uses as illustrations historical and contemporary cases that present a wide spectrum of contexts for comparison. The second part provides extensive case studies that are intended to illustrate, appraise, amplify and criticise the analysis in volume one. These include Iran, East Germany, Portugal, Afghanistan, and Yugoslavia.