Naval War College, Sound Military Decision
“ Familiarity with the physical characteristics of the actual and possible theaters of operations, and accurate intelligence of the strength, distribution, and activities of enemy forces likely to be encountered, are of primary importance in the promotion of freedom of action. Additions to this store of knowledge may be made by a continuous interpretation and dissemination of new information collected, analyzed, and evaluated by persistent effort. Of equal importance is the denial of information to the enemy. ”
