As Napoleon said, the only thing a commander ever truly controls is his own army—training, morale, trust, initiative, command and, to a lesser degree, supply, placement, movement, loyalty, and courage in battle. What the enemy will do and what chance will bring, those defy all planning. The commander must be able to change his plans abruptly when obstacles or opportunities appear. If his army isn’t ready and willing to respond to his will, his cleverness comes to nothing.
