307th RED HORSE conducts annual training at Barksdale
U.S. Air Force Master Sgt. Jessica Wiley, NCOIC of vehicle maintenance, 307th RED HORSE Squadron, dons a M50 Joint Service General Purpose Field Mask at Barksdale Air Force Base, La., Sept. 10, 2014. The Airmen were practicing operations in a contaminated environment using the masks, which is a yearly requirement for field skills training. (U.S. Air Force photo by Master Sgt. Jeff Walston/Released)