U.S. Air Force Staff Sgt. Dequan Roland-Hoover, a military working dog handler assigned with the 51st Security Forces Squadron, prepares as Diego, a military working dog with the 51st SFS, secures a tight hold on his arm during bite training at Osan Air Base, Republic of Korea, March 12, 2019. Here at Osan and across the Air Force, K-9 teams provide a multi-faceted capability in explosive or narcotic substance detection, and suspect apprehension. (U.S. Air Force photo by Staff Sgt. Ramon A. Adelan)