20 December 1983. ehich called for "a conprehensive study of concepts of securily,in particular securi!y policies shich enphasi ze co-operative efforts and nutual underslanding bett een States, with a vien to developing proposals for policies aimed at prevencing the arns race, building confidence in relaEions betseen states, enhancing the possibility of reaching agreenenls on arns limitation and disarmanent and pronoting political and econonic EecuriCyn. 2. As experts concluded in the study, concepts ot security are Che different bases on which States and the i,nternational connunity as a thole rely tor tbeir securiEy. Any discussion of security concepts is complex and, understandably,controversial. Nevertheless, Che need to discuss these issues is real it nutual Erust. respect and undersEanding are to be enhanced. 3. In their report, the group recognized that the different security concepts have evolved in response to the need for naEional security and as a result of changing political, military, econonic and other circurostances. ConcepEs of security contain different elenents such as nilitary capabilities, economic scrength, social development, lechnological and scientific progress as $ell aspoLitical co-operat.ion Chrougb the use of bitateral and multilateral diplonacy' also involving international organizations. Concepts of security nay eDphasize any one of these elements or a combj.nation of lhen and may stress naEional unilaCeralactlon to maiDlaj.n security or nul!ilateral co-operative approacbes. Traditionally concepts of security have enphasi zed unilateral steps to reduce nationalvulnerabilities through niliCary defence. 4. All nations have the righC to defend their orrn securiey. There is, houever, aresponsibility borne by all to ensure that national polici.es do not jeopardize gLobal security. As the c€neral Assenbly declared in 1978, mankind is today confronted with a threaf of self-extinction arising fron the nassive accunulationof the r0ost destructive Feapons ever produced. To avoid the risk of nuclear war it
**Analysis**
The text appears to be discussing the concept of security, particularly in the context of international relations and arms control. It mentions the need for cooperative efforts and mutual understanding between states to prevent the arms race, build confidence, and promote disarmament. The text also touches on the different elements that make up concepts of security, such as military capabilities, economic strength, social development, and technological progress. Given the focus on international relations, security, and arms control, it is likely that the text falls under a category related to international affairs.

**Category**
International relations, Science and technology