IraqMilitary Personnel: Persons including soldiers involved with the armed forces.War: Hostile conflict between organized groups of people.AfghanistanCombat Disorders: Neurotic reactions to unusual, severe, or overwhelming military stress.Hospitals, Military: Hospitals which provide care for the military personnel and usually for their dependents.Blast Injuries: Injuries resulting when a person is struck by particles impelled with violent force from an explosion. Blast causes pulmonary concussion and hemorrhage, laceration of other thoracic and abdominal viscera, ruptured ear drums, and minor effects in the central nervous system. (From Dorland, 27th ed)Veterans: Former members of the armed services.Stress Disorders, Post-Traumatic: A class of traumatic stress disorders with symptoms that last more than one month. There are various forms of post-traumatic stress disorder, depending on the time of onset and the duration of these stress symptoms. In the acute form, the duration of the symptoms is between 1 to 3 months. In the chronic form, symptoms last more than 3 months. With delayed onset, symptoms develop more than 6 months after the traumatic event.Military Medicine: The practice of medicine as applied to special circumstances associated with military operations.