The purpose of this study is to examine the efficacy of multiple treatment options in addressing the co-morbidity between pain and PTSD symptoms. Recent research has suggested that pain and PTSD co-morbidity presents unique problems for pain and PTSD treatment, and new approaches are desperately needed to address this issue. To this end, the investigators hope to identify the efficacy of a combined pain and PTSD psychosocial treatment protocol compared to that of stand-alone psychosocial treatments for pain and PTSD. The primary measure for treatment efficacy will be treatment-related changes in measures of psychosocial and functional outcomes associated with chronic pain and PTSD conditions. The investigators will additionally measure socioeconomic outcomes including return to pre-trauma job (or a job of similar capacity), maintenance of active duty work at pre-trauma capacity for 6 and/or 12 months after return, and number of healthcare appointments made between follow-ups for pain or PTSD treatment.