Differences in military personnel's hardiness depending on their leadership levels and combat experience: An exploratory pilot study.

Constant challenges and permanently stressful conditions at military workplaces demand high levels of hardiness for military personnel. We aimed to determine possible differences in Ukrainian military personnel's hardiness depending on their leadership levels and existing combat experience. The study involved 543 Ukrainian service members (85.8% male and 14.2% female, aged 18 to 61 years). We used the Professional Hardiness Questionnaire and the Brief Resilience Scale. The obtained data showed that the higher leadership levels the military personnel had, the higher their hardiness was (up to the company commander level in our study). We revealed a significant predominance of professional challenge acceptance in the structure of military personnel's hardiness, followed by professional control and professional commitment. This proportion of professional hardiness components did not differ depending on service members' leadership levels. Additionally, we showed significantly higher hardiness stability after participating in combat operations in military leaders compared to service members without subordinates. Our findings necessitate hardiness examination during military personnel selection and its development during military training, in particular for deployment.