Air Force Tech. Sgt. Chris Brunsman installs an initiator into a general purpose bomb body at Bagram Airfield, Afghanistan, Aug. 4, 2017. Brunsman is assigned to the 455th Expeditionary Maintenance Squadron. Airmen work on explosives on a daily basis and must receive safety briefings before building every bomb. The briefings go over evacuation points and personal protective equipment that must be worn during the bomb-building process.. Air Force photo by Staff Sgt. Benjamin Gonsier