The man in the steel helm
Staff Sgt. Gary Christensen, 21st Logistics Readiness Squadron NCO in charge of deployment operations, peers out from behind a steel helm at Peterson Air Force Base, Colo., Aug. 12, 2016. A medieval enthusiast for most of his life, Christensen spent seven years collecting pieces to complete his armored knight ensemble. (U.S. Air Force photo by Staff Sgt. Amber Grimm)