Abstract
The modern security environment, being dynamic and often unpredictable, hazardous and limited in resources, is a challenge itself for the member-countries of Euro-Atlantic structures. Respectively and as a consequence of our Armed Forces reforms prolonged for more than 20 years, which resulted in lack of personnel and unfulfilled modernization, there has been an intensifying discussion on the question whether the defence capabilities of our country, as part of the collective ones, are good enough to ensure the safety of the Bulgarian territory as well as our national and the international security and to reach the Capability Targets. When resolving this issue, not only the security environment factors should be considered, but also the security imperatives, one of them being the maintenance of defence products as an integral part of their life cycle management (LCM). In the search of a balance between resources and capabilities, our scientific attempts have focused on defining scientifically supported criteria for the increase of the efficiency of defence products life cycle management as part of the resource management for security and defence, which determines the goal of our scientific research and analyses in the present work