Terrorists often claim to be fighting wars, and to be doing no more than is necessary in war. This is nonsense. War is certainly the natural expression of collective resentment; but it occurs between organised groups and is fought openly, against a collective enemy. It is possible to fight a war with undiminished respect for the rights of the enemy individual. Indeed, that is the duty of every soldier. But the terrorist must disregard this duty and disobey the law of war. His feelings towards the individual are abolished by his loathing of the group, and it is this—rather than his cowardice, cruelty, or intemporate hate—that constitutes his true moral corruption.