The publicists have but recognised and reflected the floating sentiments of their time, without giving us any definite principle by which to separate the permissible from the non-permissible practice in war. We have seen how much they are at issue on the use of poison. They are equally at issue as to the right of employing assassination; as to the extent of the legitimate use of fraud; as to the right of beginning a war without declaration; as to the limits of the invader’s rights of robbery; as to the right of the invaded to rise against his invader; or as to whether individuals so rising are to be treated as prisoners of war or hanged as assassins. Let us consider what they have done for us with regard to the right of using savages for allies, or with regard to the rights of the conqueror over the town he has taken by assault.
The right to use barbarian troops on the Christian battle-field is unanimously denied by all the modern text-writers. Lord Chatham’s indignation against England’s employment of them against her revolted colonies in America availed as little. Towards the end of the Crimean war Russia prepared to arm some savage races within her empire, and brought Circassians into Hungary in 1848.[32] France employed African Turcos both against Austria in 1859 and against Prussia in 1870; and it is within the recollection of the youngest what came of the employment by Turkey of Bashi-Bazouks. Are they likely not to be used in future because Bluntschli, Heffter, or Wheaton prohibits them?
To take a town by assault is the worst danger a soldier can have to face. The theory therefore had a show of reason, that without the reward of unlimited licence he could never be brought to the breach. Tilly is said to have replied, when he was entreated by some of his officers to check the rapine and bloodshed that has immortalised the sack of Magdeburg in 1631: ‘Three hours’ plundering is the shortest rule of war. The soldier must have something for his toil and trouble.’[33] It is on such occasions, therefore, that war shows itself in its true character, and that M. Girardin’s remark, ‘La guerre c’est l’assassinat, la guerre c’est le vol,’ reads like a revelation. The scene never varies from age to age; and the storming of Badajoz and San Sebastian by the English forces in the Peninsular War, or of Constantine in Algeria by the French in 1837, teaches us what we may expect to see in Europe when next a town is taken by assault, as Strasburg might have been in 1870. ‘No age, no nation,’ says Sir W. Napier, ‘ever sent forth braver troops to battle than those who stormed Badajoz’ (April 1812). Yet for two days and nights there reigned in its streets, says the same writer, ‘shameless rapacity, brutal intemperance, savage lust, cruelty, and murder.’[34] And what says he of San Sebastian not a year and a half later? A thunderstorm that broke out ‘seemed to be a signal from hell for the perpetration of villany which would have shamed the most ferocious barbarians of antiquity.’ ... ‘The direst, the most revolting cruelty was added to the catalogue of crime: one atrocity ... staggers the mind by its enormous, incredible, indescribable barbarity.’[35] If officers lost their lives in trying to prevent such deeds—whose very atrocity, as some one has said, preserves them from our full execration, because it makes it impossible to describe them—is it likely that the gallant soldiers who crowned their bravery with such devilry would have been one whit restrained by the consideration that in refusing quarter, or in murdering, torturing, or mutilating non-combatants, they were acting contrary to the rules of modern warfare?
If, then, we temper theory with practice, and desert our books for the facts of the battle-field (so far as they are ever told in full), we may perhaps lay down the following as the most important laws of modern warfare:
1. You may not use explosive bullets; but you may use conical-shaped ones, which inflict far more mutilation than round ones, and even explosive bullets if they do not fall below a certain magnitude.
2. You may not poison your enemy, because you thus take from him the chance of self-defence: but you may blow him up with a fougass or dynamite, from which he is equally incapable of defending himself.
3. You may not poison your enemy’s drinking-water; but you may infect it with dead bodies or otherwise, because that is only equivalent to turning the stream.
4. You may not kill helpless old men, women, or children with the sword or bayonet; but as much as you please with your Congreve rockets, howitzers, or mortars.
5. You may not make war on the peaceable occupants of a country; but you may burn their houses if they resist your claims to rob them of their uttermost farthing.
6. You may not refuse quarter to an enemy; but you may if he be not equipped in a particular outfit.