Staff Sgt. Alvin Walker, an electrical systems craftsman with the 137th Special Operations Civil Engineering Squadron (137th SOCES), Oklahoma City, lifts the visor on his hood of an arc flash suit during deployment readiness training at March Air Reserve Base in Moreno Valley, California, June 27, 2018. The 137th SOCES members train at a regional training site every three years as a part of this deployment readiness training. (U.S. Air National Guard photo by Staff Sgt. Brigette Waltermire)