 The dual burden of a loss of a fellow service member in the context of b experiencing repeated extreme life threat is unique to military combat personnel and a core characteristic of combat-related Prolonged Grief Disorder PGD, a disorder as prevalent as Post-traumatic stress disorder and associated with functional impairment, disability, and suicidality. Effective treatments for depression and PTSD have proven less than adequate in treating PGD when each is offered in isolation; and simply combining these 12-16 week treatment regimens into a 24-36 week treatments is not a viable approach, particularly with a population predisposed to avoiding extended mental health care. This project addresses the need for a Veteran military specific treatment of PGD, and uses technology to deliver this treatment in a format that is far more likely to be accepted by military personnel and Veterans. This study will impact clinical practice by providing the first evidence for effective treatment of PGD in Veterans. 