Cutting edges
BAGRAM AIR BASE, Afghanistan -- Staff Sgt. Gregory Lund edges newly poured concrete on an A-10 Thunderbolt II parking ramp here. He is a civil engineer with the 455th Expeditionary Operations. In the past two weeks, civil engineers here have been building revetments, painting taxiway and parking ramp lines, laying new hangar foundations, and breaking up and laying concrete to expand and improve the flightline. (U.S. Air Force photo by Master Sgt. Jeff Szczechowski)