sentences:  Moreover, the efforts of all military arms was felt imperative to be joint, in order to combat the adversary.Furthermore, changing tactics of adversaries compelled the military to revise its doctrines in war fighting, thus setting conditions for a sound ‘Joint environment’.On 22 January 2007, ACSC was re-designated as the Defence Services Command and Staff College, where all military doctrinal and strategic level planning and teachings were brought under one roof with Secretary to the President, Lalith Weeratunga serving as the Chief Guest.