U.S. Air Force Airmen from the 8th Civil Engineer Squadron, observe a quadcopter taking off at Kunsan Air Base, Republic of Korea, Nov. 2, 2018. The 8th CES trains using small, unmanned aerial systems to survey the airfield at a quicker pace and larger scale, honing a capability that can be used in the aftermath of natural disasters to survey damage. (U.S. Air Force photo by Senior Airman Stefan Alvarez)