This article explores about the numerous security challenges faced by small and landlocked states which are harmful for peace, prosperity and development. Small and landlocked countries in the world are experiencing different security challenges at present in the backdrop of different political power in different ways. The national security in twenty first century is meant for peace, prosperity and development. In the changing dynamics of Nepal, the security issue has been a major concern for political stability and international relations. Though the security issue has a very long history, since the beginning of human civilization it was important, its goal is not ended yet. Nonetheless, the internal and external dynamics of national security have been shifted in the changing contexts of regional, and global political power. It has different meaning in different contexts of political regime. There has been paradigm shift in the interpretation of security concerns of each member state of the United Nations. The classical ago-based state centric security is transferred into human centric approach for peace, stability and development. Contrary the small and landlocked states are always in threat in different ways which is undoubtedly different things to different people. The sense of national security in the academia involves mitigation of physical threat and psychological fear. As a result, the cherished values collapsed and affect the conditions of peace, stability and development.
2. Theoretical Framework of the Security
3. Security Threats for Small and Landlocked Country
4. Changing Context of Nepal