The aim of the study is to investigate the psychological state of the soldiers before they go to the battle space. The article shows the Assessment of people’s behavior, their psycho-emotional characteristics, and the degree of their adaptability in extreme conditions. This interest has increased even further due to the intensification of hostilities in Ukraine since February 2022 after the invasion of Russian forces on its territory. Extreme situations, including military conflicts, largely affect people’s ability to withstand stress, and their willingness to survive these events safely and develop a sufficient degree of adaptability in themselves. Researchers examine the psycho-emotional state of an individual from the standpoint of different theoretical positions. Conclusions. This study has shown that the current psycho-emotional state of Ukrainian military personnel who are preparing to go to the front line is characterized by a low degree of anxiety, increased aggressiveness, and the ability to adapt to environmental conditions easily, set goals and achieve them. At the same time, the military of Ukraine also show symptoms of stress, and some signs of neuropsychic instability, psychopathy, hysteria, paranoia, and psychasthenia. These personality traits may be directly related to the nature of their professional activities and an increased sense of awareness of their own significance and importance in combat conditions. In general, the listed features of the psycho-emotional state are evidence of the readiness of Ukrainian service members to participate in the war and their ability to perform their duties effectively.