War should never be thought of as something autonomous, but always as an instrument of policy.
Carl von ClausewitzThe majority of people are timid by nature, and that is why they constantly exaggerate danger. all influences on the military leader, therefore, combine to give him a false impression of his opponent's strength, and from this arises a new source of indecision.
Carl von ClausewitzIn War, the young soldier is very apt to regard unusual fatigues as the consquence of faults, mistakes, and embarrassment in the conduct of the whole, and to become distressed and depondent as a consequence. This would not happen if he had been prepared for this beforehand by exercises in peace.
Carl von Clausewitz