Commander, Submarine Force, U.S. Pacific Fleet

Rear Adm. Marcos Jasso, commander, Carrier Strike Group (CSG) 9, left, poses for a photo with Rear Adm. Chris Cavanaugh, commander, Submarine Force, U.S. Pacific Fleet, during the exercise Rim of the Pacific (RIMPAC), aboard Nimitz-class aircraft carrier USS Theodore Roosevelt (CVN 71), July 30, 2026. Thirty nations, over 30 surface ships, five submarines, 15 national land forces, more than 206 aircraft and 30,000 personnel are participating in RIMPAC in and around the Hawaiian Islands, June 24 to July 31. The world’s largest international maritime exercise, RIMPAC provides a unique training opportunity while fostering and sustaining cooperative relationships among participants critical to ensuring safety of sea lanes and security on the world’s oceans. RIMPAC 2026 is the 30th exercise in the series that began in 1971. (U.S. Navy photo by Mass Communication Specialist 2nd Class Ryan Holloway)

Pacific Submarine Force Commander visits USS Theodore Roosevelt as RIMPAC 26 Concludes

Rear Adm. Chris Cavanaugh, commander, Submarine Force, U.S. Pacific Fleet, visited Nimitz-class aircraft carrier USS Theodore Roosevelt (CVN 71), the lead U.S. Navy ship for RIMPAC 26, July 30. FULL STORY

NAVAL BASE POINT LOMA, Calif. (July 21, 2026) Capt. Phillip Sylvia Jr., commander, Submarine Squadron (CSS-11), observes from the pier as Los Angeles-class fast-attack submarine USS Springfield (SSN 761) arrives to its new homeport at Naval Base Point Loma, July 21, 2026. Springfield is assigned to CSS-11, home to four Los Angeles-class fast-attack submarines which are capable of supporting various missions, including anti-submarine warfare, anti-ship warfare, strike warfare and intelligence, surveillance and reconnaissance. (U.S. Navy photo by Mass Communication Specialist 2nd Class Rashan Jefferson)

USS Springfield (SSN 761) Shifts Homeport to San Diego

Los Angeles-class fast-attack submarine USS Springfield (SSN 761) arrived at its new homeport of Naval Base Point Loma in San Diego, July 21, 2026. FULL STORY

JOINT BASE PEARL HARBOR-HICKAM, Hawaii (July 9, 2026) – U.S. Sailors assigned to Los Angeles-class fast-attack submarine USS Jefferson City (SSN 759) conduct mooring operations as Jefferson City arrives at Joint Base Pearl Harbor-Hickam during its change of homeport, July 9, 2026. Jefferson City is assigned to Submarine Squadron 7 and is capable of supporting various missions, including anti-submarine warfare, anti-surface ship warfare, strike warfare, and intelligence, surveillance, and reconnaissance. (U.S. Navy photo by Chief Mass Communication Specialist Omar A. Dominquez)

USS Jefferson City arrives at New Homeport in Pearl Harbor

Los Angeles-class fast-attack submarine USS Jefferson City (SSN 759) arrived at its new homeport of Joint Base Pearl Harbor-Hickam, July 9. Jefferson City joined Submarine Squadron 7 as its seventh fast-attack submarine. FULL STORY

NAVAL BASE POINT LOMA, Calif. (June 29, 2026) Capt. Phillip Sylvia Jr., commander, Submarine Squadron 11, renders a salute to side boys during the Inactivation Ceremony for Los Angeles-class fast-attack submarine USS Alexandria (SSN 757) onboard Naval Base Point Loma, June 29, 2026. Alexandria was commissioned on June 29, 1991, and is scheduled to be decommissioned after 35 years of active service. Alexandria is assigned to Commander, Submarine Squadron 11, home to four Los Angeles-class fast-attack submarines, which are capable of supporting various missions, including anti-submarine warfare, anti-ship warfare, strike warfare and intelligence, surveillance and reconnaissance. (U.S. Navy photo by Mass Communication Specialist 2nd Class Rashan Jefferson)

USS Alexandria (SSN 757) Holds Inactivation Ceremony

The crew of Los Angeles-class fast-attack submarine USS Alexandria (SSN 757) held an Inactivation Ceremony at Naval Base Point Loma, June 29, 2026. FULL STORY

NAVAL AIR STATION NORTH ISLAND, Calif. (June 26, 2026) Cmdr. Christian Rivera, off-going commanding officer, Undersea Rescue Command (URC), speaks during the change of command ceremony for URC onboard Naval Air Station North Island, June 26, 2026. During the ceremony, Rivera was relieved by Cmdr. Michael Mowry as commanding officer of URC. URC, comprised of active and Reserve component Sailors, and civilian contractors, is the Navy’s only submarine rescue-capable command ready to deploy around the world in the event of a submarine emergency. (U.S. Navy photo by Mass Communication Specialist 2nd Class Rashan Jefferson)

Undersea Rescue Command Welcomes New Commanding Officer

Cmdr. Michael Mowry relieved Cmdr. Christian Rivera as commanding officer of Undersea Rescue Command (URC) during a change of command ceremony onboard Naval Air Station North Island, June 26, 2026. FULL STORY

HMAS STIRLING, Western Australia, Australia (Sep. 10, 2024) — USS Hawaii (SSN 776) departs HMAS Stirling Sept. 10, marking the conclusion of a historic submarine maintenance period in Western Australia. As part of the Australia, United Kingdom, United States (AUKUS) Pillar 1 effort, Royal Australian Navy personnel assigned to submarine tender USS Emory S. Land (AS 39) worked alongside their U.S. Navy counterparts to make repairs on the U.S. Virginia-class SSN in Australia during a multi-week Submarine Tendered Maintenance Period, or STMP. (U.S. Navy photo by Rory O'Connor)

Pacific Submarine Force Reestablishes Submarine Squadron 3

To support Submarine Rotational Force-West (SRF-West), Rear Adm. Chris Cavanaugh, Commander, Submarine Force, U.S. Pacific Fleet, reestablished Submarine Squadron 3 (CSS-3), which previously operated out of Pearl Harbor, Hawaii, and was decommissioned in February 2012. FULL STORY:

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With a legacy that stretches back for more than a century, today's U.S. Submarine Force is the most capable in the world and defends the homeland through stealth, endurance, and deterrence.

SUBPAC Headlines

Pacific Submarine Force Commander visits USS Theodore Roosevelt as RIMPAC 26 Concludes
August 13, 2026 — Following the conclusion of the at-sea phase of the biennial Rim of the Pacific (RIMPAC) 2026... MORE

USS Springfield (SSN 761) Shifts Homeport to San Diego
July 21, 2026 — NAVAL BASE POINT LOMA, Calif. - Los Angeles-class fast-attack submarine USS Springfield (SSN 761)... MORE

USS Jefferson City arrives at New Homeport in Pearl Harbor
July 9, 2026 — PEARL HARBOR, Hawaii – Los Angeles-class fast-attack submarine USS Jefferson City (SSN 759) arrived... MORE

USS Mississippi (SSN 782) Returns Home from Deployment
July 6, 2026 — JOINT BASE PEARL HARBOR-HICKAM (July 6, 2026) - Virginia-class fast-attack submarine USS Mississippi... MORE