Luncheon Engagement U.S. Defense Secretary James N. Mattis sits next to Indian Defense Minister Nirmala Sitharaman at the Association of Southeast Asian Nations Defense Ministers’ Meeting leaders' lunch in Singapore, Oct. 20, 2018. SHARE IMAGE: Download Image: Full Size (1.47 MB) Tags: Mattis, Defense Secretary Photo By: Lisa Ferdinando VIRIN: 181020-D-BN624-0336.JPG Photo Gallery