OEF
U.S. Air Force Staff Sgt. Danny Janis performs preventive maintenance at a batch plant at Camp Dwyer, Afghanistan June 24, 2010. The batch plant is used to make concrete for an unfinished runway. Sergeant Janis is a heavy equipment operator deployed to the 809th Expeditionary Red Horse Squadron. (U.S. Air Force photo/Staff Sgt. Quinton Russ/released)