Annual Air Symposium of Sri Lanka Air force was held at Ratmalana with the theme ‘Air Power in Addressing Asymmetric Threats’ today with State Minister of Defence Ruwan Wijewardene as the chief guest. Defense Secretary Kaplia Waidyaratne, Chief of Defence Staff Ravindra Wijegunawardena, Tri forces commanders and IGP Pujith Jayasundara were also present. Pix by Pradeep Pathirana