https://www.icrc.org/en Convention (V) respecting the Rights and Duties of Neutral Powers and Persons in Case of War on Land. The Hague, 18 October 1907. CHAPTER I : THE RIGHTS AND DUTIES OF NEUTRAL POWERS - ART. 8. Art. 8. A neutral Power is not called upon to forbid or restrict the use on behalf of the belligerents of telegraph or telephone cables or of wireless telegraphy apparatus belonging to it or to companies or private individuals. CHAPTER I : THE RIGHTS AND DUTIES OF NEUTRAL POWERS - ART. 9. Art. 9. Every measure of restriction or prohibition taken by a neutral Power in regard to the matters referred to in Articles 7 and 8 must be impartially applied by it to both belligerents. A neutral Power must see to the same obligation being observed by companies or private individuals owning telegraph or telephone cables or wireless telegraphy apparatus. [not an international relations lawyer]