Introduction: Moral injury (MI) results when military personnel are exposed to morally injurious events that conflict with their values and beliefs. Given the complexity of MI and its physical, emotional, social, and spiritual impact, a holistic approach is needed. While the biopsychosocial aspects of MI are more commonly addressed, less is known of the spiritual dimension and how to incorporate it into treatment that facilitates restoration of one's core self and mending of relationships with self, others, and the sacred/Transcendent. The purpose of this study was to gain a greater understanding of the relationship between spirituality/religion (S/R) and MI as experienced by military members and veterans and to consider how S/R might be better integrated into prevention and treatment strategies. Methods: A mini-review of peer-reviewed articles published between January 2000 and April 2018 regarding the relationship between spirituality and MI among military personnel and veterans was conducted. Results: Twenty-five articles were included in the final review. Five themes were identified and explored, including i) Spirituality: A potential cause of and protective factor against MI, ii) Self and identity: Lost and found, iii) Meaning-making: What once was and now is, iv) Spirituality as a facilitator of treatment for MI, and v) Faith communities: Possible sources of fragmentation or healing. Discussion: Findings identified a cyclical relationship between S/R and MI, whereby S/R can both mitigate and exacerbate MI, as well as be affected by it. Seen as a type of S/R struggle, the use of S/R-specific strategies [e.g., forgiveness, review of S/R beliefs, engagement in S/R practices, and (re)connection with S/R communities], integration of S/R perspectives into general interventions, and help from chaplains may support healing, self-regulation, and mending of relationships, moral emotions, and social connection. Further research is yet needed, however, regarding i) S/R orienting systems, interventions, practices, and rituals/ceremonies that might protect against and treat MI; ii) features of individuals who do/do not experience MI; iii) S/R assessment tools and interventions; and iv) ways to maximize the positive contributions of faith communities.
Keywords: biopsychosocial–spiritual approach; identity; military; moral injury; self; spirituality; veterans.