The first annual memorial oration of late General Deshamannya Denis Perera, organized by the Association of Retired Flag Rank Officers (ARFRO), was delivered at the Kotelawala Defence University on 11 Auguest 2013
The fourth annual memorial oration of late General Deshamannya Denis Perera, organized by the Association of Retired Flag Rank Officers (ARFRO), was delivered at the Kotelawala Defence University on 11 Auguest 2016
