Airman 1st Class Kaleb Johnson (left) and Senior Airman Josh Kohler, 28th Civil Engineer Squadron electrical systems technicians, uses hard signals to direct the operator of a high reach truck during the installation of a new utility pole as part of an equipment upgrade at Ellsworth Air Force Base, S.D., Sept. 13, 2013. Electrical systems technicians use high reach trucks to work on power lines and street lights throughout the base. (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)