U.S. Air Force Senior Airman Jerry Vincent, a Water and Fuel Systems Maintenance technician with the 116th Civil Engineering Squadron (CES), Georgia Air National Guard, uses a sledgehammer to break up and remove concrete while correcting a storm water drainage problem at Robins Air Force Base, Ga., April 13, 2013. The 116th CES offered to fix the drainage problem on the road at Robins Air Force Base, in order to provide training for their Guardsmen during a Unit Training Assembly weekend. (U.S. Air National Guard photo by Master Roger Parsons/Released)