Mattis Meeting Defense Secretary Jim Mattis speaks with U.S. Ambassador to the United Nations Nikki Haley during a visit to the U.S. Mission to the United Nations in New York City, March 30, 2017. DoD photo by Army Sgt. Amber I. Smith SHARE IMAGE: Download Image: Full Size (1.46 MB) Photo By: Amber I. Smith VIRIN: 170330-D-SV709-007.JPG Photo Gallery