Senior Airman Aaron White, 81st Infrastructure Division firefighter, inspects his regulator air pressure level during confined space rescue operations training Feb. 13, 2015, at the medical center, Keesler Air Force Base, Miss. Keesler hosted the one-time advanced rescue certification training course, which consisted of confined space rescue, high and low angle rescue and stokes basket rescue operations. Eleven students from four bases completed the course. (U.S. Air Force photo by Kemberly Groue/Released)