The article characterizes the processes of logistical support of the flood-affected public and the processes of logistical security of the separated military groupings for support of internal security, assistance to the civilian population in mitigating the consequences of the flood and accelerating the reconstruction of infrastructure. The research niche of this article is a cross-sectional view of the new areas implemented by the military logistics potential in the 2024 floods in Poland. The purpose of the research was to identify and evaluate the scope of tasks of the military logistics system of the Polish Armed Forces envisaged for the implementation of tasks in support of government administration, local government, rescue services as well as the affected civilian population, and the tasks of logistical security of troops residing in flood areas and acting for the benefit of local authorities and society. Achieving such a defined objective required answering the following research question: what was the role of elements of the military logistics system supported by civilian logistics capabilities during the 2024 floods in Poland? The paper adopts the following research hypothesis: the proper use of military and civilian logistics capabilities can improve the efficiency of the process of support and logistical security of the injured population and other participants carrying out emergency tasks, and is determined in particular by the ability of military logistics capabilities to respond flexibly to the dynamically changing situation during a crisis situation and the preparation of the right quantity and quality of resources that are necessary to meet the needs of the injured and those involved in rescue operations. In order to solve the defined research problem and verify the adopted hypothesis, the following research methods were used: analysis, synthesis, abstraction, inference, generalization, and conclusions drawn from participant observation in a military operation supporting civilians affected by the 2024 flood disaster in the southwestern region of Poland.