EventsProtected CN to address OAA-ADF. Public welcome By ANI - 0 357 The Chief of Navy (CN), Vice Admiral Mark Hammond AM, RAN will present the 2023 Order of Australian Association–Australian Defence Force Oration on Tuesday 18 April 2023. The event is free and the public is welcome. Bookings close Friday 14 April. Please Login to view this content. (Not a member? Join Today!)