171122-N-TW634-069 ATLANTIC OCEAN (Nov. 22, 2017) Fire

171122-N-TW634-069 ATLANTIC OCEAN (Nov. 22, 2017) Fire Control Technician 1st Class Alvin Miller, right, Chief Fire Control Technician Brian Vinella, top left, and Chief Electronics Technician (Submarine Navigation) Casey Smith, bottom left, all assigned to Unmanned Undersea Vehicle Squadron 1 (UUVRON 1), perform maintenance on a Bluefin-12D, an unmanned underwater vehicle, on board the Norwegian construction support vessel Skandi Patagonia. Undersea Rescue Command, the U.S. Navy's only submarine rescue unit, and members of UUVRON 1 are mobilized to support the Argentine government's search and rescue efforts for the Argentine Navy diesel-electric submarine ARA San Juan. (U.S. Navy photo by Mass Communication Specialist 2nd Class Derek Harkins/Released)