Northcom Discussion Defense Secretary Jim Mattis speaks with Air Force Gen. Lori Robinson, the commander of U.S. Northern Command, during a visit to Northcom headquarters in Colorado Springs, Colo., Nov. 16, 2017. DoD photo by Army Sgt. Amber I. Smith SHARE IMAGE: Download Image: Full Size (1.53 MB) Tags: Travels , JIm Mattis, SecDef, Northcom, Northern Command Photo By: VIRIN: 171116-D-SV709-0179.JPG Photo Gallery