Logistical support plays a pivotal role in the success of military operations, directly influencing the effectiveness and efficiency of unit actions. Our aim is to examine the dynamics of logistical operations, focusing on the impact of supply chain optimization, and medical evacuation systems in combat. Decisions on the speed of replenishment of necessary supplies are not enshrined in the doctrines, nor are the specific locations of logistics and medical bases defined. Our objectives thus focus on the mentioned problems by means of simulation. Through simulations conducted in the MasaSword environment, this study explores the relationship between the distance of logistics and medical bases from frontline units, the speed of supply replenishment, and the efficiency of rescue operations. The research investigates two primary hypotheses: shorter distances between first-line units and logistics bases enhance the speed of wounded personnel evacuation, and supply replenishment. The simulations tested scenarios with logistics bases located 50 km and 100 km from combat units. Simulation results reveal that the proximity of logistics and medical bases significantly affects the speed and efficiency of medical evacuation and supply replenishment. The study confirms a direct correlation between combat intensity, the number of wounded personnel, and the consumption of supplies, particularly during the initial hours of combat. By reducing the distance between bases and frontline units, significant improvements can be achieved in evacuation times and the success of combat operations. Furthermore, the research highlights the value of simulations in military planning, enabling decision-makers to identify potential risks, and optimize resource allocation.