Leaders Meeting Defense Secretary Jim Mattis speaks with British Defense Secretary Michael Fallon, center, before an arrival ceremony at Britain's Defense Ministry in London, March 31, 2017. DoD photo by Army Sgt. Amber I. Smith SHARE IMAGE: Download Image: Full Size (1.45 MB) Tags: Travels , JIm Mattis, SecDef, Atlantic Resolve Photo By: Amber I. Smith VIRIN: 170331-D-SV709-061.JPG Photo Gallery