He participated in several military operations against the LTTE such as Operation Riviresa and the Vadamarachchi Operation and is the recipient of a number of awards and military decorations including the Desha Putra Sammanaya.
Desha Putra Sammanaya | Universiti Putra Malaysia | Tuanku Syed Faizuddin Putra Jamalullail | Putra Indoor Stadium | Jalan Syed Putra | Indra Putra Mahayuddin | Helen Desha Beamer | Desha Breckinridge | Bharat Ka Veer Putra – Maharana Pratap |
The main military decorations Kulatunga received included Rana Sura Padakkama(RSP), Uttama Seva Padakkama (USP), Sri Lanka Armed Services Long Service Medal, Riviresa Campaign Services Medal, Purna Bhumi Padakkama, North and East Operations Medal, Desha Putra Sammanaya amongst others.