Laws of War: Hague Convention of 1907
Section XII: Convention Conerning the Rights and Duties of Neutral Powers in Naval War
18 October 1907
With a view to harmonizing the divergent views which, in the event of naval war, are still held on the relations between neutral Powers and belligerent Powers, and to anticipating the difficulties to which such divergence of views might give rise;
Seeing that, even if it is not possible at present to concert measures applicable to all circumstances which may in practice occur, it is nevertheless undeniably advantageous to frame, as far as possible, rules of general application to meet the case where war has unfortunately broken out;
Seeing that, in cases not covered by the present Convention, it is expedient to take into consideration the general principles of the law of nations;
Seeing that it is desirable that the Powers should issue detailed enactments to regulate the results of the attitude of neutrality when adopted by them;
Seeing that it is, for neutral Powers, an admitted duty to apply these rules impartially to the several belligerents;
Seeing that, in this category of ideas, these rules should not, in principle, be altered, in the course of the war, by a neutral Power, except in a case where experience has shown the necessity for such change for the protection of the rights of that Power;
Have agreed to observe the following common rules, which cannot however modify provisions laid down in existing general treaties, and have appointed as their Plenipotentiaries, namely:
[List of Plenipotentiaries]
Who, after having deposited their full powers, found in good and due form, have agreed upon the following provisions:
[Only Article I is reproduced]
Belligerents are bound to respect the sovereign rights of neutral Powers and to abstain, in neutral territory or neutral waters, from any act which would, if knowingly permitted by any Power, constitute a violation of neutrality.
Annex to Hague Convention of 1907, Section IV
[Only relevant articles are reproduced]
Art. 23. In addition to the prohibitions
provided by special Conventions, it is especially forbidden
(a) To employ poison or poisoned weapons;
(b) To kill or wound treacherously individuals belonging to the hostile nation or army;
(c) To kill or wound an enemy who, having laid down his arms, or having no longer means of defence, has surrendered at discretion;
(d) To declare that no quarter will be given;
(e) To employ arms, projectiles, or material calculated to cause unnecessary suffering;
(f) To make improper use of a flag of truce, of the national flag or of the military insignia and uniform of the enemy, as well as the distinctive badges of the Geneva Convention;
(g) To destroy or seize the enemy's property, unless such destruction or seizure be imperatively demanded by the necessities of war;
(h) To declare abolished, suspended, or inadmissible in a court of law the rights and actions of the nationals of the hostile party. A belligerent is likewise forbidden to compel the nationals of the hostile party to take part in the operations of war directed against their own country, even if they were in the belligerent's service before the commencement of the war.
Art. 27. In sieges and bombardments all necessary steps must be taken to spare, as far as possible, buildings dedicated to religion, art, science, or charitable purposes, historic monuments, hospitals, and places where the sick and wounded are collected, provided they are not being used at the time for military purposes.
It is the duty of the besieged to indicate the presence of such buildings or places by distinctive and visible signs, which shall be notified to the enemy beforehand.