Senior Airman Daren Marshall, 386th Expeditionary Security Forces Squadron military working dog handler, comforts his K-9, Zack, during an X-ray session on Dec. 13 at an air base in Southwest Asia. Zack received an X-ray to see how his pneumonia has cleared since his last visit. Airman Marshall is assigned to the 386th Expeditionary Security Forces Squadron and is deployed from F.E. Warren Air Force Base, Wyo.