duty of allegiance

... When fixing the penalty, the courts or authorities of the Detaining Power shall take into consideration, to the widest extent possible, the fact that the accused, not being a national of the Detaining Power, is not bound to it by any duty of allegiance, and that he is in its power as the result of circumstances independent of his own will. The said courts or authorities shall be at liberty to reduce the penalty provided for the violation of which the prisoner of war is accused, and shall therefore not be bound to apply the minimum penalty prescribed. ...

... The death sentence cannot be pronounced on a prisoner of war unless the attention of the court has, in accordance with Article 87, second paragraph, been particularly called to the fact that since the accused is not a national of the Detaining Power, he is not bound to it by any duty of allegiance, and that he is in its power as the result of circumstances independent of his own will. ...