Abstract
The aim of the study was to justify new approaches to understanding diplomacy as an adaptive system capable of integrating military, information, legal and economic instruments for effective interaction in the context of hybrid threats. The methodology was based on a combination of an interdisciplinary approach, which included instruments of political science, international relations, security studies, law and communication studies, with the use of comparative analysis, case studies, institutional analysis and critical discourse analysis. The results of the study showed that diplomacy in hybrid conflicts has undergone qualitative changes, moving away from the classical model of inter-state negotiations in favour of a multidimensional approach integrated with military and information tools. An analysis of peacekeeping missions in Kosovo, Mali, Congo and Ukraine confirmed the decisive role of combining diplomatic and security components to achieve stability. It was found that international organisations such as the United Nations, the Organisation for Security and Cooperation in Europe, the European Union and the North Atlantic Alliance acted as key coordinators in shaping the institutional framework for responding to hybrid threats. The study highlighted the growing importance of “third parties” in conflict resolution, as demonstrated by Turkey and Qatar, which used humanitarian and economic instruments for mediation. One area of focus was countering disinformation campaigns, where the United States, France and Eastern European countries demonstrated different models of institutional responses, including legislative initiatives and the creation of specialised centres to combat propaganda. The analysis showed that the development of cyber diplomacy and institutional initiatives, in particular European strategic communications projects, have become necessary to ensure the sustainability of states. It was found that the effectiveness of diplomacy depended on the ability to combine traditional negotiation practices with new tools of digital interaction and strategic communications. Based on the analysis, it is recommended to develop integrated diplomatic strategies that combine traditional negotiations with modern tools of cybersecurity and countering disinformation, taking into account regional specifics. The results can be used to improve national and international strategies for countering hybrid threats and to develop effective diplomatic practices in the new global security environment
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