U.S. Air Force Tech Sgt. Justin Leon Guerrero, 647th Security Forces Squadron kennel master, is bitten by Satan, 647th SFS military working dog, on Joint Base Pearl Harbor-Hickam, Hawaii, Aug. 27, 2024. MWDs are trained to respond to loud and assertive commands, enabling them to subdue aggressive suspects when necessary. (U.S. Air Force photo by Senior Airman Mark Sulaica)