this he was Professor in the Department of Psychiatry of the Uniformed Services University of the Health Sciences and Director of the Division of Neuropsychiatry at the Walter Reed Army Institute of Research. He is a Colonel (retired) in the U.S. Army Medical Corps. He is a Fellow of the American Psychiatric Association, a member of the American Academy of Sleep Medicine, the Sleep Research Society and the European Sleep Research Society, and serves on the Board of Directors of the National Sleep Foundation. Dr. Belenky’s research ranges from basic to applied and includes sleep, sleep deprivation, and continuous operations; combat stress reactions and post-traumatic stress disorder; and the neurobiology of human behavior and adaptation. During the Gulf War (1990-91), he served as regimental psychiatrist for the U.S. Army’s Second Armored Cavalry Regiment. In addition to authoring multiple journal articles, he has edited two books on combat psychiatry ( Contemporary Studies in Combat Psychiatry , Greenwood Press, 1987 and The Gulf War and Mental Health: A Comprehensive Guide , Praeger Press, 1996) and done pioneering work on sleep restriction and performance.