The article is devoted to the analysis of the peculiarities of the use of resilience and vitality training for psychological adaptation to new living conditions. Resilience is characterized as a person's ability to act effectively, despite stressful life situations. Resilience training is defined as a set of exercises aimed at forming effective interpersonal relationships based on support and trust, taking into account a person's previous traumatic experience. Identifying the possibilities of using strengthening training in the psychological rehabilitation of combatants. The objectives of the article are to define the concept of hardiness, the ways of its development in adulthood, the degree of pronouncedness of hardiness in demobilized combatants, analysis of the adaptation of hardiness to the conditions of Ukraine, the formation of a perspective identity in the context of this training, and the influence of training on the psychological adaptation of combatants. The following methods were used in this study: PCL-5 (F.W. Weathers), Rogers-Diamond questionnaire adapted by O. Osnitsky, viability questionnaire (S. Maddy). Endurance training is a set of exercises aimed at forming adaptive coping strategies, effective interpersonal relationships based on support and trust. The training basis of Hardinez is continuity, presented as the unity and wholeness of a person in the process of time, which reflects the temporary character of the individual. The described criterion of identity is ensured by the process of transformation of any changes that occur with a person and in a person into a continuous, continuous whole. Traditionally, resilience has been viewed as a general positive adaptation to stressors. However, the trait of resilience – returning to a previous state after crisis or extreme situations – can also have serious, often overlooked, drawbacks. In particular, it may be unrealistic to return to a previous state, or resilience may lead to a person being stuck in an unwanted, uncomfortable state. Since the concept of resilience is closely related to the impact of a stressor, it is necessary to clearly explain what a stressor is and how it affects a person. When resilience is conceptualized as a general positive adaptation, the stressor is usually defined as an event that is statistically associated with impairment, such as trauma. Resilience and hardiness training as a group form of psychological rehabilitation can be successfully used to improve adaptation skills to new life conditions, which are the Russian-Ukrainian war.