We already know that the aim of all strategical offensive operations is to bring about the tactical decision under conditions as favourable as possible for ourselves. We shall accomplish this if we fall upon the enemy's weakest point with superior force. If, before the decision by combat, we succeed in bringing together all the troops which can possibly be brought up, and lead them in the direction in which their presence will be most felt by the enemy, then we shall have done everything strategically possible for the offensive. After all, the whole art of war resolves itself into being the stronger at the decisive point.