Mattis Defense Secretary Jim Mattis stands with Mexican Defense Secretary Gen. Salvador Cienfuegos Zepeda during an armed forces parade in Mexico City, Sept. 15, 2017. DoD photo by Air Force Staff Sgt. Jette Carr SHARE IMAGE: Download Image: Full Size (0.47 MB) Tags: JIm Mattis Photo By: DoD VIRIN: 170915-D-GY869-161.JPG Photo Gallery