If I am able to determine the enemy's dispositions while at the same time I conceal my own, then I can concentrate and he must divide.
Sun TzuThere is nothing more difficult than tactical maneuvering. The difficult consists in turning the devious into the direct, and misfortune into gain. Thus, to take a long and circuitous route after enticing the enemy out of the way, and though starting after him to contrive to reach the goal before him, shows knowledge of the artifice of deviation.
Sun Tzu