U.S. Air Force Senior Airman Abdel Rodriguez, a heavy equipment operator with the 116th Civil Engineering Squadron (CES), Georgia Air National Guard (ANG), Robins Air Force Base, Ga., drives a vibratory smooth drum roller while repairing a crater on the airfield at Silver Flag training at Tyndall Air Force Base, Fla., April 17, 2014. During the weeklong course, Guardsmen from the 116th CES along with 219 Airmen from multiple U.S. Air Force active duty, Reserve and Air National Guard units trained on building and maintaining bare-base operations at a simulated forward-deployed location. In addition, they honed their combat and survival skills, repaired simulated bomb-damaged runways, practiced EOD scenarios, set up base facilities and established various critical base operating support capabilities. Thirty-four Airmen from the 116th CES attended the exercise that consisted of extensive classroom and hands-on training culminating in an evaluation of learned skills on the last day of class. (U.S. Air National Guard photo by Master Sgt. Roger Parsons/Released)