s Introduction : NATO and the Longue Durée / Edward A. Kolodziej -- The new NATO and Central and Eastern Europe : managing European security in the twenty-first century / Marybeth Peterson Ulrich -- Slovakia and security at the center of Europe / Charles Krupnick and Carol Atkinson -- Slovenia and NATO enlargement : twists, turns, and endless frustrations / Zlatko Šabič and Ljubica Jelušič -- Bulgarian armed forces and national security policy : shaping the security environment in southeastern Europe / Todor Tagarev -- Romania and NATO : the national-regional security nexus / Larry L. Watts -- NATO's strategic engagement with Ukraine in Europe's security buffer zone / Jennifer D.P. Moroney and Stacy Closson -- Russia and NATO after the Cold War / Hilary D. Driscoll and S. Neil MacFarlane -- The Baltic States : in search of security and identity / Gražina Miniotaitė -- NATO and security sectors in Central and Eastern Europe / Charles Krupnick.