Warfare has traditionally been executed within easily defined periods of time and geographic boundaries. These conflicts have been fought on identifiable terrain in the air, on the ground, under the sea, and, as of the last 20 years, in space.
Even the changing tools of war have been easily defined: the rifle, bomb, aircraft, tank, ship, et al. Some of the newer tools, such as the improvised explosive device, are equally tangible and identifiable.
But the Internet has opened a whole new domain for warfare. There are no geographical boundaries. Cyber warfare is a game-changer. It changes how we assess our enemies, meet their challenges and enact policies that match the growth of the cyber domain.
What exactly is cyber warfare? We need a clear understanding of what the term means and how cyber warfare differs from traditional warfare. Otherwise, it will be impossible to discuss and understand — let alone address.