ELLSWORTH AIR FORCE BASE, S.D. -- Senior Airman Adam Winston, 28th Logistics Readiness Squadron maintenance supply liaison, put on his chemical and biological warfare gear during a Phase II Operational Readiness Exercise, March 2. The Phase II ORE is designed to simulate a deployed environment and test the combat abilities of Ellsworth's Airmen. (U.S. Air Force photo/Airman 1st Class Anthony Sanchelli)