Airman 1st Class Spencer Harwood is a security forces member from the 451st Expeditionary Support Squadron at Kandahar Airfield, Afghanistan. The 451st ESPTS is a “mini-mission support group,” containing many of the same elements, just on a smaller scale. The security forces element contains flightline security, entry controllers and a tactical security element, which provides overwatch and freedom of movement for coalition personnel. (U.S. Air Force photo by Staff Sgt. Benjamin Gonsier)