The study investigates systemic risks affecting capital investment flows in Ukraine’s post-crisis economy, employing VAR models and the Kalman filter. It analyzes the relationship between investment flows and key macroeconomic indicators. Utilizing neural network tools, the research identifies pivotal factors influencing investment processes amidst wartime. The study delineates primary strategies for risk mitigation, including the adoption of modern warfare economics principles, combating systemic dysfunctions such as corruption, and legitimizing property rights through targeted investments. Furthermore, in the financial sector, there is a notable emphasis on the imperative: to enhance commercialization in banking, align regulations with EU standards, develop money, bond, and securities markets, facilitate small business financing and financial inclusivity, and mobilize external financing to sustain financial stability.