190124-F-GK203-161
Senior Airman Christopher Allen, 66th Security Forces Squadron Military Working Dog handler, watches as his working dog, Qquail, leaps through an obstacle toward Staff Sgt. Mark Devine, 66th SFS MWD trainer, during an outdoor training session at Hanscom Air Force Base, Mass., Jan. 24, 2019. Military canines provide SFS personnel with drug and explosive detection as well as specialized missions for the Department of Defense and other government agencies. (U.S. Air Force photo by Linda LaBonte Britt)