U.S. Air Force military working dog (MWD) Ddewey, assigned to the 376th Expeditionary Security Forces Squadron, undergoes dental surgery to remove a fractured tooth, at the Transit Center at Manas, Kyrgyzstan, Aug. 14, 2013. Ddewey gets the double letter in his name to identify that he was bred in the Department of Defense MWD Breeding Program on Lackland Air Force Base, Texas.