When he was deployed to Iraq in 2005, Army Sgt. E-5 Steven Acheson was assigned to the security detail of a high-ranking officer, driving a Humvee over IED-infested roads on more than 400 missions, as the violent insurgency tore the country apart. During his deployment, he suffered an accident that left him with a herniated disc. He had also begun experiencing symptoms of post traumatic stress disorder (PTSD). “Nightmares and strange things would happen in the middle of the night.