When the Treaty of Lisbon went into effect in December 2009, the event seemed to mark the beginning of a longer phase of institutional consolidation for the EU. Since 2010, however, the EU has faced multiple crises, which have rocked its foundations and deeply challenged the narrative of 'the end of the history of integration'. The military crisis in eastern Ukraine and the refugee crisis call for a joint approach, but in practice reveal the difficulty of maintaining even the appearance of European solidarity and political unanimity. The financial and socio-economic crisis in southern Europe and Brexit present the EU with the latest set of challenges. If seventy years of European integration have taught us anything, it is that fundamental crises as well as moments of rapid institutional change form integral parts of its history. The Unfinished History of European Integration presents the reader with historical and theoretical knowledge on which well-founded judgements can be based.This textbook on European integration history has been written as a student textbook for a bachelor's or master's programme in European integration history, as a manual for the analysis of EU sources and, finally, as an information resource for a bachelor's or master's thesis.

The Unfinished History of European Integration is a companion to the history of the European Union. From the aftermath of the First World War to the EU of 27 member states and Russia’s invasion of Ukraine, it guides the reader past the main events, crucial sites and key actors that shaped the EU we know today. How did it evolve from a market project to a geopolitical force, what explains the expansion of its membership, institutions, policies and the resistance to this growth, and why does it function as it does?

This book provides more than just a chronological account of over seventy years of European integration. It also shows how observers past and present have made sense of the EU. The Unfinished History of European Integration is therefore a unique introduction for readers with different disciplinary backgrounds to understanding the EU. If over seventy years of European integration have taught us anything, it is that fundamental crises as well as moments of rapid institutional change have been constants in its history.