Both the commercial trucking industry and the U.S. military are stepping up their use of simulator systems to beef up training programs for a variety of driver-related duties. In trucking, simulators help sharpen specific skills needed for handling foul-weather conditions, such as snow, as well as backing-up maneuvers. In the military, drivers and their crews use full-scale simulators not only to improve their vehicle handling abilities but sharpen their combat skills as well.