Mattis in Singapore Defense Secretary James N. Mattis meets with Defense Ministers Marise Payne of Australia and Itsunori Onodera of Japan at the 2018 International Institute for Strategic Studies Shangri-La Dialogue in Singapore, June 2, 2018. The ministers met to build upon their partnerships and to discuss regional security. DoD photo by Air Force Tech Sgt. Vernon Young Jr. SHARE IMAGE: Download Image: Full Size (0.13 MB) Tags: James N. Mattis, Defense Secretary, Singapore Photo By: DoD VIRIN: 180602-D-IO684-023.JPG Photo Gallery