Secretary Arrival Defense Secretary James N. Mattis shakes hands with Ameed Saleh Al Hinai, Omani Defense Ministry protocol chief, after arriving in Muscat, Oman, March 11, 2018. DoD photo by Army Sgt. Amber I. Smith SHARE: Download: Full Size (3.07 MB) Credit: Amber I. Smith VIRIN: 180311-D-SV709-0028C.JPG Photo Gallery