"This fascinating and well-researched book helps bridge the gap between Western and Russian concepts of ’hybrid warfare’ -- not to reconcile them, but to explore the differences. The work exposes the underlying conceptual divergences, and thus helps explain the current tension between Russia and the West. This is a fascinating and attractively-written study of a phenomenon that affects us all." -- Richard Sakwa, Professor of Russian and European Politics, University of Kent, and author of Frontline Ukraine: Crisis in the Borderlands