Capt. Brandon Kvidt (left), 28th Medical Group clinical dentist, and Capt. Timothy Aylward (right), 28th MDG physician assistant, low crawl while moving a simulated patient toward the finish line of a litter obstacle at Ellsworth Air Force Base, S.D., Aug. 19, 2015. The event was part of a field training exercise that consisted of four stations: Alaskan shelter-setup, ambulance loading, litter carrying and self-aid buddy care. (U.S. Air Force photo by Airman Sadie Colbert/Released)