Investigation of the analysis of the interaction of indicators of operating, financial, and investment activities of an enterprise, which characterise its financial condition during the period of external instability caused by Russia’s military aggression against Ukraine, is significant for the formation of forecasts of their transformation, with a purpose of ensuring the sustainability of the development of enterprises. The purpose of the study was to analyse external factors and internal measures of enterprises that influence the formation of a high-quality recovery strategy in the post-war period. Since February 2022, Ukrainian business has demonstrated unique models of adaptation to crisis conditions, integration of various activities to achieve a shared goal and preparation for future recovery. This was facilitated by the study and implementation of foreign practices, which enabled Ukrainian enterprises to effectively integrate operational, financial, and investment activities to stabilise their operations during the war and lay the foundations for rapid economic stabilisation after its end. This will help to increase the competitiveness of Ukrainian enterprises in the global economy. The study proved not only the necessity of researching foreign practices in rebuilding the country’s economy, but also of analysing Ukraine’s geographical features. Understanding its landscape, economic model, mentality of the population, and level of education was necessary to create an effective national recovery model. If such a model was in line with current capabilities, it will be capable of ensuring sustainable development for the country and its business entities in the post-war period in a relatively short time. Military conflicts substantially change the landscape of the economy. The study revealed that a military situation can become a catalyst for the development of innovative technologies and the attraction of international support for recovery and modernisation. Considering this, it was vital to consider investment, operational, and financial activities as interrelated elements that create synergies for economic recovery. A systematic approach to their analysis can provide the basis for a successful post-war recovery, namely, to improve the management of operational processes to increase productivity and create a stable financial environment to attract internal and external investors