English: Mock M-16, therapist manual and a package of various odor concentrations used with virtual reality simulation software at David Grant Medical Center's Mental Health Clinic uses integrated motion inducing platform, headphones, cued smells generator, mock M-16 with directional controls / game controller and virtual reality visor work together to help Operation Iraqi Freedom and Operation Enduring Freedom veterans with combat post traumatic stress disorder. The software, introduced to eight bases in the Air Force, is designed to create a safe environment for redeployers with PTSD to recreate a traumatic situation they have experienced. By talking about the their experience people build details to the simulation. Little by little, they gain a better understanding of the traumatic experience. The VR technology compliments the evidence-based treatment known as 'Prolonged Exposure Therapy' and other research proven approaches are used here to help deployers live a normal life. David Grant USAF Medical Center at Travis AFB, Calif., is the Air Force's largest medical facility on the West coast. Serving military beneficiaries throughout eight western states. DGMC is the second largest inpatient Military Treatment Facility in the United States Air Force, providing a full spectrum of care to 81,991 eligible beneficiaries and 400,000 Veterans Administration's Northern California Health Care System eligible population.