U.S. Air Force 145th Comptroller Flight Commander, Maj. Jeanie Helms, practices identifying explosive ordinance devices from a distance during an Ability To Survive and Operate (ATSO) training held in a C-17 Globemaster III hangar at the North Carolina Air National Guard (NCANG) Base, Charlotte Douglas International Airport, Jan. 10, 2019. The ATSO exercise consists of ten rotating stations and serves as refresher training for situations like self-aid buddy care, explosive ordinance device recognition, and chemical warfare decontamination stations.