170602-N-OU129-042 SINGAPORE (June 2, 2017) Secretary of Defense Jim Mattis (center left) and Chairman of the Joint Chiefs of Staff General Joseph Dunford (far left) meet with Singapore’s Prime Minister Lee Hsien Loong (center right) and Singapore’s Minister for Defense Dr. Ng Eng Hen (far right) at the Istana in Singapore during the Shangri-La Dialogue. The Shangri-La Dialogue, held annually by the independent think tank, the International Institute for Strategic Studies (IISS), is an inter-governmental security forum which is attended by defense ministers and delegates from more than 50 nations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Joshua Fulton/Released)