Lunch Talk Deputy Defense Secretary Bob Work speaks with Air Force officers and enlisted personnel during lunch at Davis-Monthan Air Force Base, Tucson, Ariz., Dec. 2, 2016. DoD photo by Army Sgt. Amber I. Smith SHARE IMAGE: Download Image: Full Size (1.31 MB) Photo By: Amber I. Smith VIRIN: 161202-D-SV709-116D.JPG Photo Gallery