MWD Rico/M137 Retirement
Lt. Col. Dana Metzger, 436th Security Forces Squadron commander, left, Staff Sgt. Jason Spangenberg, 436th SFS military working dog trainer, right, and his MWD Rico/M137 sit on stage during Rico’s retirement ceremony Jan. 15, 2016, at Dover Air Force Base, Del. Rico is retiring from active duty after serving seven years and eight months and deploying four times. (U.S. Air Force photo/Senior Airman William Johnson)