Two Tiers Or Two Speeds? The European Security Order and the Enlargement of the European Union and NATO

The sudden transformation of the Cold War security order in 1989 altered the structure of the European state system, and necessitates the striking of a new balance between the economic, political and military requirements of security. This volume focuses on the most important institutions of European security, the European Union and NATO. Both institutions are expanding, especially eastwards, in terms of their respective roles and membership.