Tech Sgt. John Nelson, an explosive ordnance disposal team leader from the 379th Expeditionary Civil Engineer Squadron, searches a vehicle while wearing an EOD 10 bomb suit during a training scenario at Al Udeid Air Base, Qatar, Feb. 15, 2018. The exercise, a collaborative effort between security forces and the explosive ordnance disposal flight, simulated a vehicle borne improvised explosive device threat. (U.S. Air Force photo by Staff Sgt. Joshua Horton)