RIYADH, SAUDI ARABIA – APRIL 19: (—-EDITORIAL USE ONLY – MANDATORY CREDIT – “BANDAR ALGALOUD / SAUDI KINGDOM COUNCIL / HANDOUT” – NO MARKETING NO ADVERTISING CAMPAIGNS – DISTRIBUTED AS A SERVICE TO CLIENTS—-) United States Secretary of Defense, James Mattis meets with Defense Minister of Saudi Arabia Mohammad Bin Salman Al Saud (not seen) during his official visit in Riyadh, Saudi Arabia on April 19, 2017. ( Bandar Algaloud / Saudi Kingdom Council / Handout – Anadolu Agency )