Senior Airman Caitlyn Halloway, a 28th Logistics Readiness Squadron vehicle maintenance technician, hits the Kaiser I-beam of a FORCE Machine with a sledgehammer during the Firefighter Challenge at Ellsworth Air Force Base, S.D., Oct. 5, 2018. The 28th Civil Engineer Squadron fire protection flight hosted multiple events during National Fire Prevention and Safety Week, including the Firefighter Challenge, a parade and school demonstrations. (U.S. Air Force photo by Airman 1st Class Thomas Karol)