Private property cannot be confiscated.
Art. 39. Pillage is expressly forbidden.
There is at first sight a pleasing ring of humanity in all this, though, as yet, it only represents the better military spirit, which is always far in advance of actual military practice. In the monotonous history of war there are always commanders who wage it with less ferocity than others, and writers who plead for the mitigation of its cruelties. As in modern history a Marlborough, a Wellington, or a Villars forms a pleasant contrast to a Feuquières, a Belleisle, or a Blücher, so in ancient history a Marcellus or a Lucullus helps us to forget a Marius or an Alexander; and the sentiments of a Cicero or Tacitus were as far in advance of their time as those of a Grotius or Vattel were of theirs. According to the accident of the existence of such men, the laws of war fluctuate from age to age; but, the question arises, Do they become perceptibly milder? do they ever permanently improve?
It will be said that they do, because it will be said that they have; and that the annals of modern wars present nothing to resemble the atrocities that may be collected from ancient or mediæval history. Yet such statements carry no conviction. Deterioration seems as likely as improvement; and unless the custom is checked altogether, the wars of the twentieth century may be expected to exceed in barbarity anything of which we have any conception. A very brief inquiry will suffice to dispel the common assurances of improvement and progress.
Poison is forbidden in war, says the Berlin Conference; but so it always was, even in the Institutes of Menu, and with perhaps less difference of opinion in ancient than in modern times. Grotius and Vattel and most of their followers disallow it, but two publicists of grave authority defend it, Bynkershoeck and Wolff. The latter published his ‘Jus Gentium’ as late as 1749, and his argument is worth translating, since it can only be met by arguments which equally apply to other modes of military slaughter. ‘Naturally it is lawful to kill an enemy by poison; for as long as he is our enemy, he resists the reparation of our right, so that we may exercise against his person whatever suffices to avert his power from ourselves or our possessions. Therefore it is not unfair to get rid of him. But, since it comes to the same thing whether you get rid of him by the sword or by poison (which is self-evident, because in either case you get rid of him, and he can no longer resist or injure you), it is naturally lawful to kill an enemy by poison.’ And so, he argues with equal force, of poisoned weapons.[13] That poison is not in use in our day we do not therefore owe to our international lawyers, but to the accident of tradition. In Roman history the theory appears to have been unanimous against it. ‘Such conduct,’ says the Roman writer Florus of a general who poisoned some springs in order to bring some cities in Asia to a speedier surrender, ‘although it hastened his victory, rendered it infamous, since it was done not only against divine law, but against ancestral customs.’[14] Our statesman Fox refused indignantly to avail himself of an offer to poison Napoleon, but so did the Roman consuls refuse a similar proposal with regard to Pyrrhus; and Tiberius and the Roman senate replied to a plan for poisoning Arminius, that the Roman people punished their enemies not by fraud or in secret, but openly and in arms.
The history of bombarding towns affords an instance of something like actual deterioration in the usages of modern warfare. Regular and simple bombardment, that is, of a town indiscriminately and not merely its fortresses, has now become the established practice. Yet, what did Vattel say in the middle of the last century? ‘At present we generally content ourselves with battering the ramparts and defences of a place. To destroy a town with bombs and red-hot balls is an extremity to which we do not proceed without cogent reasons.’ What said Vauban still earlier? ‘The fire must be directed simply at the defences and batteries of a place ... and not against the houses.’ Then what of the English bombardment of Copenhagen in 1807, when the cathedral and some 300 houses were destroyed; what of the German bombardment of Strasburg in 1870, where rifled mortars were used for the first time,[15] and the famous library and picture gallery destroyed; and what lastly of the German bombardment of Paris, about which, strangely enough, even the military conscience of the Germans was struck, so that in the highest circles doubts about the propriety of such a proceeding at one time prevailed from a moral no less than from a military point of view?[16]
With respect again to sacred or public buildings, warfare tends to become increasingly destructive. It was the rule in Greek warfare to spare sacred buildings, and the Romans frequently spared sacred and other buildings, as Marcellus, for instance, at Syracuse.[17] Yet when the French ravaged the Palatinate in 1689 they not only set fire to the cathedrals, but sacked the tombs of the ancient Emperors at Spiers. Frederick II. destroyed some of the finest buildings at Dresden and Prague. In 1814 the English forces destroyed the Capitol at Washington, the President’s house, and other public buildings;[18] and in 1815 the Prussian general, Blücher, was with difficulty restrained from blowing up the Bridge of Jena at Paris and the Pillar of Austerlitz. Military men have always the excuse of reprisals or accident for these acts of Vandalism. Yet Vattel had said (in language which but repeated the language of Polybius and Cicero): ‘We ought to spare those edifices which do honour to human society, and do not contribute to the enemy’s strength, such as temples, tombs, public buildings, and all works of remarkable beauty.’
Of as little avail has been the same writer’s observation that those who tear up vines and cut down fruit trees are to be looked upon as savage. The Fijian islanders were barbarians enough, but even they used as a rule to spare their enemies’ fruit trees; so did the ancient Indians; and the Koran forbids the wanton destruction of fruit trees, palm trees, corn and cattle. Then what shall we think of the armies of Louis XIV. in the Palatinate not only burning castles, country-houses, and villages, but ruthlessly destroying crops, vines, and fruit trees?[19] or of the Prussian warrior, Blücher, destroying the ornamental trees at Paris in 1815?
It is said that the Germans refused to let the women and children leave Strasburg before they began to bombard it in 1870.[20] Yet Vattel himself tells us how Titus, at the siege of Jerusalem, suffered the women and children to depart, and how Henri IV., besieging Paris, had the humanity to let them pass through his lines.