ELLSWORTH AIR FORCE BASE, S.D. -- Staff Sgt. Damian Rennells, 28th Logistics Readiness Squadron mobile hydrant supervisor, constructs decontamination racks in preparation, Feb. 24, for the upcoming Phase II Operational Readiness Exercise. The Phase II ORE will test Airmen across the base on their readiness in a deployed environment. (U.S. Air Force photo/Airman 1st Class Anthony Sanchelli)