The psychological issues facing medical and surgical patients suffering from traumatic injuries are numerous and varied. These injuries may occur in the settings of armed conflict, terrorist attack, natural disaster, or accident. The goal of preventing or decreasing significant and disabling psychiatric comorbidity can be the objective and assignment of a Psychiatry Consultation Liaison Service (PCLS) within the hospital setting. A comprehensive trauma consultation service could be designed to assist the entire medical complex in its response to various events. The needs of the patient, the patient's primary support group, and the medical staff must be considered in the development of a treatment strategy for the setting of a traumatic event. This article describes the integration of a Preventive Medical Psychiatry Service (PMP) at Walter Reed Army Medical Center (WRAMC) into a traditional PCLS. The PMP model is built upon the biopsychosocial model and psychodynamic developmental concepts.