If the leader is filled with high ambition and if he pursues his aims with audacity and strength of will, he will reach them in spite of all obstacles.
Carl von ClausewitzThe world has a way of undermining complex plans. This is particularly true in fast moving environments. A fast moving environment can evolve more quickly than a complex plan can be adapted to it. By the time you have adapted, the target has changed.
Carl von ClausewitzFour elements make up the climate of war: danger, exertion, uncertainty and chance.
Carl von Clausewitz