If we look back in history specially after the Second World War, it will be noticed that there is a paradigm shift in the nature of wars and conflicts. The security forces of different nations in the twenty-first century will have to cope-up with the changing nature of warfare, introduction of new weapon systems, advance in military technologies, new concepts and doctrines, economic and geopolitical considerations etc. since future wars are likely to be fought in a globalized environment. This book describes the various facets of electronic warfare—the critical component of modern warfare and that of national defence set-up.