War is regarded as nothing but the continuation of state policy with other means.
I shall proceed from the simple to the complex. But in war more than in any other subject we must begin by looking at the nature of the whole for here more than elsewhere the part and the whole must always be thought of together.
War is not an exercise of the will directed at an inanimate matter.
The political object is the goal, war is the means of reaching it, and the means can never be considered in isolation form their purposes.
War is the domain of physical exertion and suffering.