Abstract
The article examines the security dimension of international relations in Central and Eastern Europe in the context of the Russian-Ukrainian war. The research problem is to identify changes in the security environment of the region and to assess the effectiveness of international mechanisms for deterring aggression and ensuring regional stability in this part of the world. The research goal has been achieved through geopolitical analysis, content analysis and discourse analysis of the security aspects of international relations in Eastern and Central Europe in the context of the Russian-Ukrainian war. This was based on a comprehensive approach that included an assessment of the geostrategic position of states, an analysis of their participation in international organisations, military alliances and security initiatives, as well as an examination of historical, political and economic factors that affect their foreign policy.
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