Preparedness of material is not, of course, so important as preparedness of personnel, because if the personnel is prepared, they will inevitably prepare the material. And the preparedness must pervade all grades: for while it is true that the preparedness of those in high command is more important than the preparedness of those in minor posts, yet there is no post so lowly that its good or its ill performance will not be a factor in the net result. An unskilful oiler may cause a hot bearing that will slow down a battleship, and put out of order the column of a squadron; a signalman's mistake may throw a fleet into confusion. Perfect preparedness of personnel and material is essential because events follow each other so rapidly in war that no preparation can be made after it has begun. To fight is the most intense work a man can do; and a war is nothing but a fight. No matter how great or how small a war may be, no war can lose the essential qualities of a fight, or (save in the treatment of prisoners) be more brutal or less brutal when fought between two little savage tribes, than when fought between two colossal groups of Christian nations, civilized to the highest point. War is the acme of the endeavor of man. Each side determines that it will win at all costs and at all hazards; that nobody's comfort, happiness, or safety shall receive the slightest consideration; that everybody's strength and courage must be worked to the limit by night as well as by day, and that there must be no rest and no yielding to any softening influence whatever; that the whole strength and mind of the nation, and of every individual in it, must be devoted, and must be sacrificed, if need be, to the cause at stake.