Integration of Circular Economy and Resilience Principles Into State Anti-Crisis Policy and Corporate Strategies

B a c k g r o u n d . Modern global challenges – from climate change to armed conflicts – have intensified the search for new economic models capable of combining the objectives of sustainable development with the enhancement of the resilience of societies and economies. The purpose of the study is to systematize theoretical approaches to the formation of new economic models of sustainable development and resilience, to determine their potential for strengthening the economic security of the state and enterprises, as well as to substantiate the possibilities of integrating the principles of the circular economy and resilience into state anti-crisis policy and corporate strategies using Ukraine as a case study. At the core of the research hypothesis lies the assumption that the spread of sustainable and resilient development practices among Ukrainian enterprises directly influences the country's economic security, shaping its ability to withstand military and global risks M e t h o d s . Analysis and synthesis, generalization; structural and functional analysis method; graphical and tabular methods. R e s u l t s . In the course of the study, a typology of new economic models (green, circular, frugal, solidarity, creative, etc.) was carried out, and their potential to ensure resilience and post-crisis economic recovery was analyzed. Particular attention was paid to the circular economy principles, which are considered an institutional basis for strengthening anti-crisis regulation and long-term economic security. The empirical part of the study is based on the analysis of sustainable development practices of the 22 largest Ukrainian enterprises from six industries, which demonstrate high adaptability during wartime. Among the most widespread practices are employee and community support, assistance to the Armed Forces of Ukraine, as well as ecological modernization of production. On this basis, key components of sustainable development that directly affect the economic security of the state were identified, and indicators were proposed for assessing the contribution of business to ensuring resilience. C o n c l u s i o n s . The results confirmed the research hypothesis: sustainable development practices in wartime strengthen the economic security of the state and form the foundation for inclusive post-crisis recovery. The study combines the systematization of theoretical models with an applied analysis of corporate strategies, which ensures its scientific novelty and practical significance. Prospects for further research are related to the development of integrated methodologies for assessing economic resilience, digital support for circular practices, and the harmonization of Ukrainian sustainability standards with those of the European Union.