171124-N-TW634-189 ATLANTIC OCEAN (Nov. 24, 2017) Navy

171124-N-TW634-189 ATLANTIC OCEAN (Nov. 24, 2017) Navy Diver 1st Class Kenneth Thompson, from Orange County, Calif., assigned to Undersea Rescue Command (URC), monitors pressure testing of URC's submarine rescue chamber (SRC) from the SRC console on board the Norwegian construction support vessel Skandi Patagonia. Undersea Rescue Command, the U.S. Navy's only submarine rescue unit, is mobilized to support the Argentine government's search and rescue efforts for the Argentine Navy diesel-electric submarine A.R.A San Juan (S 42). (U.S. Navy photo by Mass Communication Specialist 2nd Class Derek Harkins/Released)