Submarine Force U.S. Pacific Fleet Changes Command aboard USS Montana 11 April 2025

RADM Chris Cavanaugh, from Convoy, Ohio, relieved RADM Rick Seif, from Pittsburgh, Pennsylvania, and assumed duties as the 45th commander of SUBPAC. Image courtesy of Commander Submarine Force, US Pacific Fleet.

On 11 April 2025, RADM Chris Cavanaugh relieved RADM Rick Seif as the 45th commander of the Submarine Force U.S. Pacific Fleet (SUBPAC). The ceremony was presided over by Adm. Steve Koehler, commander of U.S. Pacific Fleet.

Learn more on Commander Submarine Force, US Pacific Fleet.

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