The Role of Russian-Chinese Military Cooperation in Shaping a Multipolar World Order

The subject of this study is the military cooperation between Russia and China as a factor transforming the modern system of international relations and shaping a new architecture of global security. The object of the research is Russian-Chinese interaction in defense, military-technical exchange, and strategic planning within the framework of the emerging multipolar world order. The author analyzes the historical evolution, current forms, and institutional mechanisms of bilateral cooperation, including the framework of the Shanghai Cooperation Organization and other formats of strategic partnership. Particular attention is given to the impact of Russian-Chinese coordination on the architecture of global and regional security and its role in strengthening the principles of equality, non-interference, and collective responsibility. The analysis covers both military-technical and political-normative dimensions, revealing how this cooperation contributes to a stable and balanced model of international stability. The study employs methods of systemic and comparative analysis, the principles of political realism and constructivism, as well as elements of the theory of complex interdependence. The scientific novelty lies in identifying the role of Russian-Chinese military cooperation as a key factor in the institutionalization of a multipolar world order. The study shows that such interaction goes beyond traditional defense policy, serving as a strategic instrument for strengthening international stability. It contributes to the formation of new centers of power, reducing global tensions, and developing an alternative model of collective security based on trust and mutual benefit. The Russian-Chinese partnership performs a stabilizing function in the system of international relations of the 21st century and promotes a more balanced and equitable world order.