The current geopolitical changes and the dedication to regional safety have drawn researchers’ attention towards discussion on the multiple aspects of new residents’ integration. Ensuring that new members of society are welcomed has been of significant scientific and political interest in sustaining coherent and resilient communities. This discussion also extends to the well-being of soldiers and their families when relocating due to deployment. Since deployment locations vary, the state of scientific knowledge highlights the need to investigate the integration of soldiers and military-related families within the specific contexts of individual states. Accordingly, this study examines the case of Lithuania, with a focus on the socio-legal factors influencing the integration of military-related families. The research is based on a thematic analysis of international scientific literature, identifying the main challenges faced by families residing in foreign countries. It also outlines the conditions necessary for the successful integration of military-related families in the Lithuanian context. The findings indicate that: a) in addition to traditional integration programs, special attention must be given to the specific characteristics of military life; b) integration of military-related residents should adopt a family-centred approach that considers the past, present, and future experiences, needs, and aspirations of family members; and c) successful integration requires strong intersectoral cooperation. The practical implications highlight the need for practitioners to pay particular attention to monitoring and managing both the sequence and quality of the integration of foreign soldiers’ families during their residence in the host country.