vessel

... Should military operations prevent the Powers concerned from fulfilling their obligation to assure the transport of the shipments referred to in Articles 70, 71, 72 and 77, the Protecting Powers concerned, the International Committee of the Red Cross or any other organization duly approved by the Parties to the conflict may undertake to ensure the conveyance of such shipments by suitable means (railway wagons, motor vehicles, vessels or aircraft, etc.). For this purpose, the High Contracting Parties shall endeavour to supply them with such transport and to allow its circulation, especially by granting the necessary safe-conducts. ...