Veterans returning from deployment in Iraq and Afghanistan frequently report physical pain. Pain can be a debilitating condition, and is classified as chronic if it lasts for at least three to six months. Recent research has shown that pain often co-occurs with other physical and psychological conditions, such as PTSD and TBI. Therefore, one of the priorities of our research at TRACTS is to better understand the nature of the relationship between physical pain and other prevalent conditions in returning Veterans. In doing this, our ultimate goal is to inform innovative treatment techniques for physical pain.