Military working dog Brock, a member of the Air Force’s 100th Security Forces Squadron, shows off his uniform after a training session at Royal Air Force Mildenhall, England, July 11, 2017. Brock is unique as the only giant schnauzer in the Department of Defense. Looking different to the regular German shepherd and Belgian malinois working dogs means people often think he is a pet. Air Force photo by Karen Abeyasekere