This study aims to contribute to an analysis of the well-being of military personnel who are deployed on humanitarian aid missions, taking their work-family (personal life) boundary management into consideration by analyzing the relationship between their preferences and enacted boundaries and military personnel' well-being. Specifically, this study analyzed the boundary fit approach, positing that it is the adjustment between individuals' preferences and enacted boundaries that influences their well-being. Using a sample of 327 military personnel, boundary management profiles were performed, considering the fit between their segmentation preferences and enactment. Furthermore, the relationship between these profiles and the military personnel' well-being was established. The results indicated that misfit profiles were found where the soldiers enacted less segmentation than desired or, on the contrary, more integration than desired, and a profile with a fit between the work-family segmentation they desired and enacted. The military personnel in the fit profile had significantly higher levels of well-being (i.e.,less exhaustion and more work engagement) than those in the misfit profile, who enacted less segmentation than desired. The findings have implications for the design of boundary management literature and future military missions.
Keywords: Boundary management; boundary preferences; boundary segmentation; engagement; exhaustion; person-centered approach.