250924-N-SS900-1160 NAVAL BASE POINT LOMA, Calif. (Sept. 24, 2025) – A Chilean Navy sailor, left, assigned to the Chilean Navy diesel-electric submarine (CNS) Thomson (SS 20), receives a heaving line from Torpedoman’s Mate Fireman Raphael GarciaRamirez, second from right, during Thomson’s return to Naval Base Point Loma, Sept. 24, 2025. Thomson is in San Diego as part of the annual Diesel-Electric Submarine Initiative (DESI) program established in 2001 by U.S. Fleet Forces Command and partners with South American submarine-operating navies as they participate in fleet readiness exercises. (U.S. Navy photo by Mass Communication Specialist 1st Class Aaron T. Smith)
