U.S. Army Staff Sgt. Mario Volmer, a range operator assigned to the South Dakota Army National Guard Training Center, programs obstacles for Ellsworth Airmen training in the virtual convoy at Camp Rapid, S.D., June 15, 2017. The virtual convoy is a multiple-station simulator that presents real-world convoy scenarios that Soldiers and Airmen may face overseas in contingency operations. (U.S. Air Force photo by Airman 1st Class Donald C. Knechtel)