U.S. Air Force Senior Airman Nathaniel Humphreys, a Military Working Dog handler assigned to the 97th Security Forces Squadron, and his MWD, Biko, practice defense techniques with U.S. Air Force Staff Sgt. Jacob Dick, Jan. 14, 2020, at Altus Air Force Base, Okla. Some of the biggest renovations made to the kennels was an entirely new air conditioning system designed to keep the dogs acclimated to the current temperature outside. A new wash station and veterinary rooms refurbished from old kennels, along with sound proof ceilings inside the kennels to prevent dog barks from echoing. (U.S. Air Force photo by Airman 1st Class Breanna Klemm)