Promotion Ceremony Defense Secretary James N. Mattis promotes a Marine to the rank of staff sergeant after arriving at the U.S. Embassy in Islamabad, Dec. 4, 2017. DoD photo by Army Sgt. Amber I. Smith SHARE IMAGE: Download Image: Full Size (2.15 MB) Tags: Travels , James N. Mattis, SecDef, MARINE CORPS, MARINES Photo By: Amber I. Smith VIRIN: 171204-D-SV709-136Y.JPG Photo Gallery