<b><i>Objective:</i></b> This article reports findings from a qualitative study that sought to identify and describe psychosocial and mental health consequences of conflict among internally displaced persons (IDPs) and military veterans in Ukraine. The study was the first phase of a clinical intervention trial and was designed to understand local experiences of mental health problems and function, inform the selection and adaptation of local measures, and guide the modification, and implementation of a psychotherapy intervention that could support conflict-affected persons. <b><i>Method:</i></b> Free-list interviews (FLs), key informant interviews (KIIs), and focus group discussions (FDGs) were conducted with IDPs, military veterans, and providers working with these two groups. A total of 227 respondents were interviewed from two study regions in eastern Ukraine-Zaporizhia and Kharkiv-including 136 IDPs and 91 military veterans. <b><i>Results:</i></b> Both IDPs and veterans were described as experiencing high levels of psychological stress symptoms, including depression, isolation, anxiety, and intrusive memories. Although IDPs and veterans were exposed to different traumas, they both identified struggles with social adaptation, including feeling isolated and misunderstood by their communities. Both groups also described relational conflict within and outside the family. Social support mechanisms were considered essential for recovery, and positive social interaction was described as a key example of healthy functioning. <i>Conclusion:</i> Findings suggest a need for community-based programming that facilitates social adaptation, supports social network building, and helps engage conflict-affected people into mental health services. Programs that promote greater awareness, interaction, and understanding among the general public, military veterans, and IDPs are also warranted. (PsycInfo Database Record (c) 2021 APA, all rights reserved).