Sri Lanka is one of the most peaceful and stable countries in the world today. Its citizens enjoy the benefits of peace and have complete freedom and countless opportunities to build better futures for themselves. At the same time, Sri Lanka faces potential threats from various sources. Guarding against these threats and ensuring the safety of the nation is the first duty of the government, because national security is the foundation of freedom and prosperity. As such, the government needs to be fully aware of all the issues that impact the country in areas such as defense, foreign policy, economic affairs and internal law and order. It must formulate a comprehensive national security strategy to deal with them. A viable national security strategy must constantly align ends with means, goals with resources, and objectives with the tools required to accomplish them. The strategy needs to be aligned with the aspirations of the people, and it must have public support. Ideally, if comprehensive security is to be ensured, it requires the achievement of national cohesion, political and economic stability, the elimination of terrorism, the countering of extremism, and the formulation of effective responses to external challenges. The government must make every effort to keep aware of a continually changing situation and take appropriate action in response to new developments and challenges. It is only then that the safety of the nation can be assured