Sub Maintenance Navy Petty Officer 3rd Class Martin Collin attaches a main ballast tank vent cover on the submarine USS Oklahoma City as it arrives in Fleet Activities Yokosuka, Japan, June 22, 2021. SHARE: Download: Full Size (1.81 MB) Tags: navy, indo-pacific Credit: Navy Petty Officer 2nd Class Adam Thomas VIRIN: 210622-N-DS193-0090C.JPG Photo Gallery