EGLIN AIR FORCE BASE, Fla. -- Dr. Charles Merkel, 53rd Wing historian, endures Combat Skills Training before deploying to Kandahar, Afghanistan, in September to "fill in" as historian for the 451st Expeditionary Wing for approximately five months. Civilians like Dr. Merkel who would like to deploy can volunteer through a Department of Defense program called the Civilian Expeditionary Workforce. (U.S. Air Force photo/ Airman Anthony Jennings)