Press Briefing Defense Secretary James N. Mattis speaks to reporters during a flight to Andrews Air Force Base, Md., March 15, 2018. DoD photo by Army Sgt. Amber I. Smith SHARE IMAGE: Download Image: Full Size (5.74 MB) Tags: Briefings, James N. Mattis, SecDef Photo By: Amber I. Smith VIRIN: 180315-D-SV709-0348.JPG Photo Gallery