MOUNTAIN HOME AIR FORCE BASE, Idaho -- Tech. Sgt. Kari Boyles, 366th Dental Squadron superintendent, preps Airman 1st Class Ryan O'Quinn, 389th Aircraft Maintenance Unit F-15E apprentice, for an emergency response exercise at Mountain Home Air Force Base, Idaho, Dec. 14. EREs are held to ensure Airmen are prepared to protect people and resources during real-world situations. (U.S. Air Force photo by Senior Airman Renishia Richardson)