2 THE INTERNATIONAL SECURITY ENVIRONMENT AND SECURITY THREATS After a period of the easing of tensions in the international security environment, these are increasing once more. The modern international security environment is changing rapidly. Globalization has made it more interconnected, complex and interdependent, which, in addition to the positive consequences, also has negative ones. The state of international relations is shifting towards multipolarity, with the emergence of new centres of power at the global and regional levels, and the related expansion of areas of influence. We are facing a transformation in the established international connections and relationships; new dynamics within the existing organizations and mechanisms of the international community; and challenges in the European security architecture, international law, multilateralism, and democratic values. In the area of security, the levers of national power of conventional and unconventional origin are strengthening, along with the use of hybrid actions across the broader social, political, economic, financial, intelligence, information, and media spectrums. National interests are pursued through the engagement of non-state actors, especially in fragile and conflict areas. Security risks stem mainly from unstable geographical areas characterized by internal conflicts, failure of authority, corruption, poverty, scarce resources, land degradation, and population growth, which creates conditions for the spread of radicalism, terrorism, crime, and illegal mass migration. The impact of climate change is another factor influencing the development of the security situation, while the speed and scale of population movements cause increased epidemiological risks. Technological advances and the availability of knowledge, products, and technologies to state and non-state actors have a significant influence on the development of security threats, which may in turn influence the emergence of new security challenges in new domains of operation. All this brings new challenges and requirements for preserving the effectiveness of the defence system. The Republic of Slovenia recognizes and manages the consequences of the changed security environment surrounding the European Union, and with the risks from its periphery. The processes of stabilization in the Western Balkans remain unfinished, causing an increase in the radicalization and influence of 8