The US Defence Attaché to Sri Lanka Lieutenant Colonel Dougles Hess paid a courtesy calls on the Commander Security Force (Wanni) Major General MKD Perera RWP RSP USP ndu at the Security Force Headquarters (Wanni) on Sunday (30).\r\n\r\nDuring the interactive meeting that ensued, both exchanged views on bilateral relations and predominant peaceful environment in Vauniya.\r\n