As military forces across the globe adopt new technologies, doctrines, and organizational forms suited to warfare in the information age, defense practitioners and academic specialists are debating the potential consequences of the "revolution in military affairs." The central question of this book is how such revolutions spread, to whom, how quickly, and with what consequences for the global balance of military power. The contributors to this volume-who include historians, political scientists, policy analysts, and sociologists-examine the diffusion of weapons technology, know-how, and methods of conducting military operations over the past two hundred years. The approach reflects the recent reawakening of interest in the relationship between culture and security. The transition from the industrial age to the information age has impacted warfare much as it has other social institutions. Advances in precision weapons, surveillance satellites, robotics, and computer-based information processing, together with organizational changes that network military units, promise to create fundamentally new ways of war; the final outcome of the current revolution is unpredictable-as the North Korean missile program shows-but its global impact will hinge on how the revolution diffuses.