44th Air Defense Division
Identification
This record is best assessed as the 44th Air Defense Division of the Baltic Fleet, military unit 42155. Open-source order-of-battle listings associate unit 42155 with the division, while a Russian court filing confirms unit 42155 had a Kaliningrad mailing address. Open sources differ on whether the headquarters is labeled Kaliningrad or Gvardeysk, so the exact HQ site is not publicly confirmed. ([nightwatch.services](https://nightwatch.services/list?utm_source=openai))
Role
CNA places the 44th Air Defense Division within the Kaliningrad-based air and air-defense component of the Baltic Fleet force grouping. OSW assesses Kaliningrad’s long-range air defenses as a core element of Russia’s regional anti-access and area-denial posture in the Baltic. ([cna.org](https://www.cna.org/reports/2021/06/russian-forces-in-the-western-military-district.pdf))
Order of battle
CNA identifies three subordinate formations: the 183rd Air Defence Regiment, the 1545th Air Defence Regiment, and the 81st Radio-Technical Regiment. In CNA’s 2021 assessment, the 1545th regiment had rearmed in early 2019 with two S-400 battalions just north of Gvardeysk, while the 183rd regiment fielded four S-400 battalions in western Kaliningrad Oblast and two S-300PS battalions near Chernyakhovsk Air Base. TASS also reported on March 15, 2019 that a new regimental set of S-400 systems entered combat duty in the Kaliningrad Region. ([cna.org](https://www.cna.org/reports/2021/06/russian-forces-in-the-western-military-district.pdf))
Site assessment
The supplied coordinates align with Gvardeysk rather than central Kaliningrad, which is consistent with long-running open-source association of the division with Gvardeysk. Public reporting indicates this is a dispersed air-defense network rather than a single compact base, with reported battalion locations north of Gvardeysk, in western parts of the oblast, and near Chernyakhovsk. ([maps.apple.com](https://maps.apple.com/place?auid=1114965912527534318&utm_source=openai))
Recent indicators
Open-source reporting indicates continued activity by the formation’s air-defense assets. Interfax reported on June 16, 2025 that Baltic Fleet S-400 crews in Kaliningrad practiced repelling a massed missile-air strike. Separately, Bellingcat’s satellite analysis published on November 13, 2023 found that one S-400 battery north of Gvardeysk was most likely at least partially vacated, but the destination of the equipment could not be confirmed, so any redeployment outside the exclave remains unverified. ([interfax-russia.ru](https://www.interfax-russia.ru/military/news/647177?utm_source=openai))