PTSD is a chronic, debilitating anxiety disorder associated with disability, functional impairment, and a host of co-morbid physical and mental health conditions. Although several treatments are successful in treating Veterans with PTSD, many Veterans fail to complete these treatments and many others complete treatment without significant relief from symptoms. Yoga is one integrative treatment option that has shown promise for a number of physical and mental health conditions, including the treatment of depressive and anxiety disorders in civilian samples, and chronic pain in Veterans. Yoga is widely offered in Veterans Affairs (VA) PTSD Treatment Programs, yet there is a lack of research on its efficacy for PTSD in Veterans.