01216nas a2200181   4500000000100000000000100001008004100002653001000043653001900053653002400072653002600096653002700122100002300149245007900172300000900251490000600260520076800266       2001                            d10aC4ISR10adefense reform10aforce modernization10aorganizational change10asecurity sector reform1 aVelizar Shalamanov00aC4ISR in Modernizing Security Sector in Bulgaria  and South-Eastern Europe  a7-220 v63 a<p>In an environment of technological revolution, C4ISR (command, control, communications, computers, intelligence, surveillance and reconnaissance) systems are given priority in force modernization. On the other side, the modernization of C4ISR, especially when implemented in interagency and international cooperation, may be an important facilitator for the overall defense and security sector reform. The focus of this article is on definition of the priority programs, model of life cycle support of C4ISR systems and its organizational dimension. We propose one possible strategy for C4ISR development in Bulgaria and South-East Europe. Organizational issues and initiatives, such as the establishment of C4 Regional Coordination Group are also debated.</p>