Master Sgt. Nathan Landry, the first sergeant assigned to the 28th Medical Group, fastens a rope for the next obstacle in the Leadership Reaction Course at the South Dakota National Guard West Camp Rapid training facility, Rapid City, S.D., Sept. 15, 2016. The zip line provided a means to transport equipment and personnel. Once the equipment was secured, participants hoisted themselves across in order to complete the obstacle. (U.S. Air Force photo by Airman 1st Class Donald C. Knechtel)