Taking a Tour Defense Secretary Lloyd J. Austin III and Australian Deputy Prime Minister Richard Marles, who also serves as his country’s defense minister, tour the USS Mississippi, a fast attack submarine based in Pearl Harbor, Hawaii. The two men had just finished a bilateral defense meeting. SHARE: Download: Full Size (0.8 MB) Credit: Chad J. McNeeley, DOD VIRIN: 221001-D-TT977-0384.JPG Photo Gallery