Today’s international security system can also be characterizedby conflict and preclusion, a vital function of rapid technological progress in national security management, regional security problems. and development of non-state actors as a major source of national as well as international insecurity. The security systems of most of the countries around the world have no longer remained unaltered since the devastating terrorist attacks of September 11, 2001, on the World Trade Center (WTC) and the Pentagon, which were considered to be America’s symbols of supremacy and pride. With every passing moment, the world community is getting increasingly concerned at the threats from the non-state actors, particularly the terrorists, who have immense capabilities of carrying on international activities on a large scale. To combat the terrorists an international alliance against terrorism has emerged. This international alliance is the newest feature of the international security system, but it is not without complications. It has quite a few implications for the security systems, both at the regional and the international level. (Rogers, 2002. Tirman, 2004)The international security system generally involves a lot of uncertainty. This uncertainty can be characterized by conceptions of both confrontation and co-operation. Strategic security-related policies of any country are influenced to a large extent by the nature of the international security system. Policy-makers of all countries make policies only after making an adequate assessment of the external threats, challenges, and opportunities. The pattern threats, challenges, and opportunities use to change with time and environment, and hence the policy-making structures are needed to have the capacity to remain flexible and responsive to change. While challenges can be dealt with over a period of time, threats always necessitate instant addressing. Opportunities, on the other hand, for furthering national interests and affecting transformation of relations in international politics do not come frequently. therefore, they also require the immediate attention of the policy-makers.