ELLSWORTH AIR FORCE BASE, S.D. -- Staff Sgt. Ben Pieta, 28th Security Forces Squadron patrolman, fires blanks at a simulated suicide bomber attempting to breach the base perimeter during a Phase II Operational Readiness Exercise, March 2. The Phase II ORE is designed to mimic a deployed environment and test the combat abilities of Ellsworth's Airmen. (U.S. Air Force photo/Airman 1st Class Anthony Sanchelli)