AFGSC Airmen train for 2018 Air Force Defender Challenge
Senior Airman Rosa Young, 891st Missile Security Forces Squadron member performs a crawl during an obstacle course Aug. 28, 2018, at Fort Harrison, Mont. These Airmen will be competing with other major command teams during the 2018 Air Force Defender Challenge. (U.S. Air Force photo by Airman 1st Class Tristan Truesdell)