K9 Jack: A dog gone good Defender
                Lt. Col. Yon Dugger, 375th Security Forces Squadron commander, and Tech Sgt. Mariah Langeland, 375th SFS NCO in charge of training, give Military Working Dog Jack a new collar during his retirement ceremony May 13, 2019 at Scott Air Force Base, Ill. When MWDs retire, they receive a new collar which annotates their completion of active duty service. (U.S. Air Force photo by Senior Airman Daniel Garcia)
                
                    
                        PHOTO BY:
                        Senior Airman Daniel Garcia
                    
                    
                        VIRIN:
                        190513-F-SH665-1084.JPG
                    
                    
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