virtue

... The High Contracting Parties may at any time agree to entrust to an organization which offers all guarantees of impartiality and efficacy the duties incumbent on the Protecting Powers by virtue of the present Convention. ...

... Mail and parcels addressed to their former camp shall be forwarded to them without delay. The camp commander shall take, in agreement with the prisoners' representative, any measures needed to ensure the transport of the prisoners' community property and of the luggage they are unable to take with them in consequence of restrictions imposed by virtue of the second paragraph of this Article. ...

... Such shipments shall in no way free the Detaining Power from the obligations imposed upon it by virtue of the present Convention. ...

... Particulars of the charge or charges on which the prisoner of war is to be arraigned, as well as the documents which are generally communicated to the accused by virtue of the laws in force in the armed forces of the Detaining Power, shall be communicated to the accused prisoner of war in a language which he understands, and in good time before the opening of the trial. The same communication in the same circumstances shall be made to the advocate or counsel conducting the defence on behalf of the prisoner of war. ...

... The denunciation shall have effect only in respect of the denouncing Power. It shall in no way impair the obligations which the Parties to the conflict shall remain bound to fulfil by virtue of the principles of the law of nations, as they result from the usages established among civilized peoples, from the laws of humanity and the dictates of the public conscience. ...