The role of Intelligence as a military discipline grew drastically through the Civil War. From initial, largely ad-hoc and localized efforts to gather information on the number and composition of enemy troops arrayed against a force, through spies and informers, to codemaking/breaking and message interception, on up to the formal development of the Army of the Potomac's Bureau of Military Information, the methods and techniques for gathering, processing, and exploiting information assumed ever-greater importance. My question to the forum is which generals best utilized intelligence in their operations? Which officer(s) made the best use of the assets available to them at the time? Who successfully pieced together a picture of his enemy's movements and exploited it, or prevented it? Who was able to position his forces and carry the day through prompt action on information? Answers will vary, but please "show your work" as my math teachers always said…