ELLSWORTH AIR FORCE BASE, S.D. -- (Left) Tech. Sgt. Jacqueline McKenzie and Senior Airman Maya Baker, 28th Medical Operations Squadron medical technicians, review their Airman's Manual for proper procedures to treat a patient with chemical burns during a Phase II Operational Readiness Exercise, March 2. A Phase II ORE is designed to prepare Airmen for deployed operations, including potential chemical warfare attacks. (U.S. Air Force photo/Airman 1st Class Matthew Flynn)