Posttraumatic Stress Disorder constitutes a substantial proportion of the burden of illness among Veterans. However, current PTSD treatments are not effective for all, and a significant number remain symptomatic despite pharmacotherapy and psychotherapy. As a result, there has been increased interest within the military and VA in Complementary and Alternative Medicine approaches, such as yoga, to improve symptoms without requiring direct verbal processing of the trauma. Yoga provides an innovative approach to calming hyperarousal, reducing numbness/avoidance, and improving self-regulation of emotions, while cultivating physical and emotional well-being. Because of this unique approach to the biological, psychological, and social dimensions of PTSD, we believe that yoga interventions are poised to meet the demand for more effective PTSD treatment options for Veterans. Recent research indicates that yoga interventions can be delivered successfully to individuals who have PTSD and have potential to reduce clinician rated and self-reported overall PTSD symptoms, depression and anxiety. However, few studies exist that have evaluated yoga for PTSD and they have involved small sample sizes and are either uncontrolled or waitlist/usual care controlled. Also, there is much variation among studies in the style and components of yoga interventions. Thus, a randomized controlled trial of a standardized, traditional, holistic yoga intervention is urgently needed to inform VA policy makers and clinicians of the potential benefits of yoga as an adjunct to currently available PTSD treatments.