This record matches Russia’s Northern Fleet headquarters/main base at Severomorsk, Murmansk Region. Russian Defense Ministry reporting relayed by TASS said Vice Admiral Konstantin Kabantsov was appointed Northern Fleet commander on April 2, 2024, and TASS reporting from August 2025 still identified him as commanding fleet-level exercises. ([tass.com](https://tass.com/defense/1935211))
A presidential decree published on February 26, 2024 removed the Northern Fleet’s status as a military-district-equivalent strategic multi-service formation and reassigned Murmansk, Arkhangelsk, Komi, and Nenets territories to the re-established Leningrad Military District. Post-decree reporting still describes the Northern Fleet as a major naval command based at Severomorsk, so this site should be read as the fleet HQ rather than the former joint strategic command. ([tass.com](https://tass.com/defense/1751711))
Official Russian statements assign the fleet Arctic-frontier defense and continuous readiness of sea-based strategic nuclear forces. During Zapad 2025, Northern Fleet detachments operated in the Arctic Ocean with a command ship, landing ship, tug, and tanker while practicing defense of Arctic coastal infrastructure, maritime economic zones, and strategic communications, indicating an active Arctic security and sustainment role. ([tass.com](https://tass.com/defense/1935211))
Open reporting places the main naval base at Severomorsk, with additional fleet bases in Murmansk Region and a White Sea/Arkhangelsk node that includes the Belomorsk naval facility at Severodvinsk. Russian officials also said a new power center for Northern Fleet facilities in Severomorsk was completed in 2023; separately, fleet reporting said Northern Fleet tankers conducted more than 100 refuelings in remote maritime zones in 2025 and delivered fuel to more than 60 remote northern locations, underscoring substantial shore and auxiliary-logistics infrastructure. ([tass.com](https://tass.com/defense/1238053))
Public reporting ties Severomorsk to the fleet’s principal surface-combatant grouping. In 2022, Northern Fleet commander Aleksandr Moiseyev said the fleet’s general-purpose seaborne forces included the 43rd Missile Ship Division; in March 2025 Putin/TASS identified the nuclear cruiser Pyotr Veliky as the fleet flagship; and TASS reported the Project 22350 frigate Admiral Golovko arriving at Severomorsk in January 2024, confirming continued investment in blue-water surface combatants at this base. ([tass.com](https://tass.com/defense/1458977))
The fleet’s wider Arctic operating architecture includes Alexandra Land in Franz Josef Land. Russian MoD material cited by DFRLab described the Arctic Trefoil base on the 80th parallel as able to house up to 150 personnel for 18 months; CNN reporting from a 2021 media visit said Nagurskoye’s runway had been extended to 3,500 meters, allowing most Russian military aircraft to use the site; and CSIS assessed Alexandra Land as reinforcing Northern Fleet air-sea-land denial and Northern Sea Route control. ([dfrlab.org](https://dfrlab.org/2017/04/25/selfies-expose-russias-arctic-bases/))