Lt. Col. Anthony Mims, 28th Logistics Readiness Squadron commander, and Senior Master Sgt. Danny Walker, 28th LRS superintendent, clear rooms in an active shooter course at the base shoot house as a part of national Police Week at Ellsworth Air Force Base, S.D., May 14, 2013. The competition was one of a variety of events held in conjunction with Police Week, a time established to recognize military and civilian police professionals for their contributions to the community. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)