Airman Prep Air Force Senior Airman Alexander Keskinen, an explosive ordnance disposal technician with the 315th Civil Engineer Flight, prepares for a controlled explosion on Joint Base Charleston, S.C., June 27, 2020. Controlled demolitions are a crucial part of training for explosive ordnance disposal technicians. SHARE IMAGE: Download Image: Full Size (0.69 MB) Photo By: Air Force Tech. Sgt. Della S. Creech VIRIN: 200627-F-UL476-1001M.JPG Photo Gallery