WRIGHT-PATTERSON AIR FORCE BASE, Ohio – 445th Civil Engineer Squadron’s Senior Airman Olsen, pavement and equipment specialist, maneuvers a bulldozer during the July 12 unit training assembly. The 445 CES is responsible for maintaining runways and air bases. Their mission requires the use of heavy equipment such as cranes, excavators and bulldozers (U.S. Air Force photo/ Tech. Sgt. Anthony Springer)