Proceedings of the International scientific and practical conference ―The Hague Conference on Science and Public Policy‖ (May 8-10, 2026) / Publisher website: www.naukainfo.com. – The Hague, Netherlands, 2026. - 232 p.

45 of the public finance management system affects the stability of the financial system, the development of the national economy, and also provides fighters on the battlefield with everything they need. The emphasis is on the need to work on its reform, improvement, and strengthening now, both in the conditions of martial law and in the post-war period. In order for the system to be reliable in various crisis situations, to successfully adapt to circumstances, using reliable, scientifically based methods, means and tools for overcoming various shocks, including the consequences of war, it is necessary that a reliable scientifically based toolkit be implemented at its core, which will increase its adaptability, flexibility and, most importantly, preserve its integrity. Keywords: functions; budget expenditures; deficit; public debt; public finances; system; socio-economic development of the country; martial law; reconstruction Any changes occurring in the country's economic and financial system caused by various shocks, crises, including the introduction of martial law due to Russian aggression, have a certain impact on the entire system, and therefore require appropriate adjustments taking into account the "experience gained". The public finance management system is no exception, therefore, it requires updating, improving, and strengthening not only its institutional component ( which is extremely important ), but also expanding the scientific justification taking into account the consequences of the threat, acquired skills, and tools used during the war. The knowledge gained in overcoming the consequences of the war must be used to benefit the further development of the system, the effective implementation of its functions, and the provision of transformational processes in the financial sector for the benefit of society. The public finance management system has had and continues to have important, strategic importance for the country, as it provides regulation of the financial sphere with the aim of developing sectors of the national economy, supporting the population, and administrative-territorial units. Its potential is an important tool for