531st Guards Anti-Aircraft Missile Regiment
Identified site
The location is best identified as military unit 70148, the 531st Guards Anti-Aircraft Missile Regiment, centered on Polyarny in Murmansk Oblast. ZATO Aleksandrovsk’s July 2024 municipal paper explicitly described the 531st Guards anti-aircraft missile regiment of the Northern Fleet celebrating its 90th anniversary, and the same issue’s municipal election materials list v/ch 70148 in Polyarny. Registry data compiled from official Russian state sources likewise places v/ch 70148 in the city of Polyarny. ([zato-a.ru](https://zato-a.ru/upload/iblock/5e3/kfmnz8i1qmhj8h6q2x15039v3bzowxe2.pdf))
Mission and geography
Open-source reporting on a Zvezda visit to the Polyarny regiment described it as a major air-defense unit whose task was to protect Northern Fleet bases and vessels; at that time it was shown with S-300 systems. Polyarny itself is one of the Northern Fleet’s Murmansk-region bases, making the regiment geographically relevant to defense of the western Kola Peninsula’s naval infrastructure and nearby Severomorsk area. ([thebarentsobserver.com](https://www.thebarentsobserver.com/news/air-defence-regiment-in-polyarny/242021))
Dispersed footprint
This regiment should be treated as a dispersed garrison network, not a single compact site. In a 2019 interview, then-commander Aleksey Kryuchkov said the unit’s subunits were located across ZATO Aleksandrovsk, Murmansk, and Severomorsk. Municipal materials published in 2024 list v/ch 70148 in Polyarny and also v/ch 70148 “X” in Gadzhiyevo. That supports a distributed footprint across Northern Fleet settlements on the Kola Peninsula; however, the exact correspondence between the supplied placemarks and specific battalion or launcher positions is not publicly confirmed in the sources reviewed. ([zato-a.ru](https://zato-a.ru/about/info/news/1162/))
Equipment status
The regiment is publicly associated with long-range SAM modernization, but the exact current battery mix is only partly transparent. Reporting from 2009 showed the Polyarny regiment with S-300. Local Murmansk reporting in July 2014 said S-400 deliveries to the regiment were due to begin that year, and later Russian defense reporting described the 531st regiment as reequipped with S-400 and Pantsir-S1 systems. That makes the metadata claim of S-400 plausible, but detailed present-day force structure at each site remains supported mainly by secondary rather than recent official source material. ([thebarentsobserver.com](https://www.thebarentsobserver.com/news/air-defence-regiment-in-polyarny/242021))
Command note
The metadata naming Colonel Alexey Kryuchkov as commander is outdated. ZATO Aleksandrovsk reported on March 5, 2020 that Kryuchkov, commander of v/ch 70148 since 2018 and previously its chief of staff from 2015, died on March 2, 2020. The July 2024 anniversary coverage mentions award presentations to the unit commander but does not publicly name a successor. I could not verify the current commander from reliable open sources reviewed here. ([zato-a.ru](https://zato-a.ru/about/info/news/1162/))