Leader Discussion Defense Secretary Jim Mattis talks with Canadian Defense Minister Harjit Sajjan at the Pentagon, May 22, 2017. DoD photo by Air Force Tech. Sgt. Brigitte N. Brantley SHARE IMAGE: Download Image: Full Size (0.59 MB) Tags: JIm Mattis, SecDef Photo By: Brigitte N. Brantley VIRIN: 170522-D-GO396-0088A.JPG Photo Gallery