The Disillusionment of the War

Sigmund Freud expresa su desilusión por las monstruosidades llevadas a cabo en las guerras, que nunca habían sido tan crueles y devastadoras como las guerras modernas. Al final Hors de combat y la convención de Ginebra sobre los presos

The enjoyment of this common civilization was disturbed from time to time by warning voices, which declared that old traditional differences made wars inevitable, even among the members of a community such as this. We refused to believe it; but if such a war were to happen, how did we picture it? We saw it as an opportunity for demonstrating the progress of comity among human beings since the era when the Greek Amphictyonic Council proclaimed that no city of the league might be destroyed, nor its olive-groves cut down, nor its water-supply stopped; we pictured it as a chivalrous passage of arms, which would limit itself to establishing the superiority of one side in the struggle, while as far as possible avoiding acute suffering that could contribute nothing to the decision, and granting complete immunity for the wounded who had to withdraw from the contest, as well as for the doctors and nurses who devoted themselves to their recovery. There would, of course be the utmost consideration for the non-combatant classes of the population - for women who take no part in war-work, and the children who, when they are grown up, should become on both sides one another's friends and helpers. And again, all the international undertakings and institutions in which the common civilization of peace-time had been embodied would be maintained.
Even a war like this would have produced enough horror and suffering; but it would not have interrupted the development of ethical relations between the collective units of mankind - the peoples and the states.

Then the war in which we had refused to believe broke out, and it brought - disillusionment. Not only is it more bloody and more destructive than any war of other days, because of the enormously increased perfection of weapons of attack and defence; it is at least as cruel, as embittered, as implacable as any that has preceded it. It disregards all the restrictions known as International Law, which in peace-time the states had bound themselves to observe; it ignores the prerogatives of the wounded and the medical service, the distinction between civil and military sections of the population, the claims of private property. It tramples in blind fury on all that comes in its way as though there were to be no future and no peace among men after it is over. It cuts all the common bonds between the contending peoples, and threatens to leave a legacy of embitterment that will make any renewal of those bonds impossible for a long time to come.
Moreover, it has brought to light an almost incredible phenomenon: the civilized nations know and understand one another so little that one can turn against the other with hate and loathing. Indeed, one of the great civilized nations is so universally unpopular that the attempt can actually be made to exclude it from the civilized community as 'barbaric', although it has long proved its fitness by the magnificent contributions to that community which it has made. We live in hopes that the pages of an impartial history will prove that that nation, in whose language we write and for whose victory our dear ones are fighting, has been precisely the one which has least transgressed the laws of civilization. But at such a time who dares to set himself up as judge in his own cause?
People are more or less represented by the states which they form, and these states by the governments which rule them. The individual citizen can with horror convince himself in this war of what would occasionally cross his mind in peace-time - that the state has forbidden to the individual the practice of wrong-doing, not because it desires to abolish it, but because it wants to monopolize it, like salt and tobacco. A belligerent state permits itself every such misdeed, every such act of violence, as would disgrace the individual. It makes use against the enemy not only of the accepted stratagems of war, but of deliberate lying and deception as well - and to a degree which seems to exceed the usage of former wars. The state exacts the utmost degree of obedience and sacrifice from its citizens, but at the same time it treats them like children by maintaining an excess of secrecy and a censorship upon news and expressions of opinion which leaves the spirits of those whose intellects it thus suppresses defenceless against every unfavourable turn of events and every sinister rumour. It absolves itself from the guarantees and treaties by which it was bound to other states, and makes unabashed confession of its own rapacity and lust for power, which the private individual has then to sanction in the name of patriotism.
It should not be objected that the state cannot refrain from wrong-doing, since that would place it at a disadvantage. It is no less disadvantageous, as a general rule, for the individual to conform to the standards of morality and refrain from brutal and arbitrary conduct; and the state seldom proves able to indemnify him for the sacrifices it exacts. Nor should it be a matter for surprise that this relaxation of all the moral ties between the collective beings of mankind should have had repercussions on the morality of individuals; for our conscience is not the inflexible judge that ethical teachers declare it, but in its origin is dread of the community and nothing else. When the community no longer raises objections, there is an end, too, to the suppression of evil passions, and people perpetrate deeds of cruelty, fraud, treachery and barbarity so incompatible with their level of civilization that one would have thought them impossible.
Well may the citizen of the civilized world of whom I have spoken stand helpless in a world that has grown strange to him - his great fatherland disintegrated, its common estates laid waste, his fellow-citizens divided and debased!
There is something to be said, however, in criticism of his disappointment. Strictly speaking it is not justified, for it consists in the destruction of an illusion. We welcome illusions because they spare us emotional distress, and enable us instead to indulge in gratification. We must not complain, then, if now and again they come into collision with some portion of reality and are shattered against it.
Two things in this war have aroused our sense of disillusionment: the low morality shown externally by states which in their internal relations pose as the guardians of moral standards, and the brutality shown by individuals whom, as participants in the highest human civilization, one would not have thought capable of such behaviour.
Let us begin with the second point and try to formulate, in a few brief words, the point of view that we wish to criticize. How, in point of fact, do we imagine the process by which an individual rises to a comparatively high plane of morality? The first answer will no doubt simply be that he is virtuous and noble from birth - from the very start. We shall not consider this view any further here. A second answer will suggest that we are concerned with a developmental process, and will probably assume that the development consists in eradicating his evil human tendencies and, under the influence of education and a civilized environment, replacing them by good ones. If so, it is nevertheless surprising that evil should re-emerge with such force in anyone who has been brought up in this way… (Sobre la guerra y la muerte, de Sigmund Freud

Common Article 3 relating to non-international armed conflict
Persons taking no active part in the hostilities, including members of armed forces who have laid down their arms and those placed hors de combat by sickness, wounds, detention, or any other cause, shall in all circumstances be treated humanely, without any adverse distinction founded on race, colour, religion or faith, sex, birth or wealth, or any other similar criteria…

Hors de combat, literally meaning "outside the fight” is a French term used in diplomacy and international law to refer to persons who are incapable of performing their ability to wage war.