About the Lifting the Fog of War: Command and Control category

This build is dedicated to all the resources a commander has available to help penetrate that fog. The modern term for all of this is C4I (Command, Control, Communications, Computers and Intelligence) which according to the US DoD also encompasses Recce and Surveillance. I figure this should open things up nice and wide for build options.

Any time period, any scale, any subject so long as it fits one of the categories above. Spy Satellite? Golden. Napoleonic General with a Bugler? Love it. AWACS? Yes please. My only ask is that you can clearly articulate how the subject you’re presenting would contribute to battlefield management of combat units. Sci-Fi, Fantasy and Alt History is also welcome here.