MARINE CORPS AIR STATION YUMA, Ariz. -- U.S. Marines with Aircraft Rescue and Fire Fighting (ARFF) conduct Hand Line Drills at Marine Corps Air Station (MCAS) Yuma Feb. 15, 2019. These drills focus on techniques to push fuel fires away from aircraft and simulate large aircraft fire fighting. The Marines train monthly to enhance their readiness when responding to hazards or emergencies on the flight line. (U.S. Marine Corps photo by Cpl. Sabrina Candiaflores)