Former Commander of Sri Lanka Navy Admiral Wasantha Karannagoda and former Commander of Sri Lanka Air Force Air Chief Marshal Roshan Gunathileke have been conferred the highest honorary military ranks by President Maithripala Sirisena at an investiture ceremony held Thusday (19).Accordingly, Karannagoda was promoted as the Admiral of the Fleet while Gunathileke was promoted as Marshal of Sri Lanka Air Force. The President had earlier awarded the honorary military ranks in an extraordinary gazette notification and the formal presentation took place today at the Colombo Harbour premises.