Army Captain Andrew J. Armstrong, Joint Base Andrews Veterinarian Section officer in charge, performs a follow-up exam on Sjem, 11th Security Forces Squadron explosives detector dog, held in place by Senior Airman Garrett Watson, 11 SFS military working dog handler, after an ear infection. The Joint Base Andrews Veterinarian Services' primary mission is to provide medical and dental support for government owned animals to include military working dogs. (U.S. Air Force photo by Airman 1st Class Bahja J. Jones)