Warfare has long been defined by nations who could design, develop, and field the most exquisite and most destructive forces either through deterrence or brute force. However, the paradigm shifts that have occurred in recent decades including Cyber, Space, and now most prominently, the Cognitive domain, offer to challenge this long-held status quo. The Havana Syndrome is a defining work for all security and intelligence professionals. Dr. Krishnan's research into the paradigm shift of conflict is an essential study for students and a must-read for planners and practitioners.