U.S. Air Force Senior Airman Matthew Boyer, 20th Civil Engineer Squadron fire department driver operator, gives tips on fire extinguisher use to South Carolina Civil Air Patrol cadets in Sumter, S.C., Jan. 9, 2018. According to Boyer, fire extinguishers are the first line of defense in putting out a fire. (U.S. Air Force photo by Airman 1st Class Benjamin Ingold)