This book contends that public debates over wars and humanitarian military interventions after the Cold War represent an evolving process of comprehension and collective interpretation of new realities. Employing innovative computer-linguistic methods, it examines the dynamics of this debate across Europe and compares it to that of the United States. In doing so, it argues that transnational political communication has shaped European identity-formation in significant ways and that, in trying to come to terms with important crises and institutional events, shared understandings of Europe have emerged. Looking at evidence from a wide range of countries, including Austria, France, Germany, Ireland, the Netherlands and the United Kingdom, and spanning a continuous period of 16 years, this book empirically analyses these shared understandings of the EU as a problem-solving and ethical community. This book will be of interest to students and scholars of international relations, EU politics, security studies, comparative politics, political communication and European integration.