3rd Radio-Technical Regiment
Identification
Open sources identify this record as Russia’s 3rd Radio-Technical Regiment, military unit 85683, subordinate to the 31st Air Defense Division in occupied Crimea. CNA describes the regiment as the division’s radar component and places its headquarters west of Belbek Air Base; a Russian ombudsman report separately places sub-unit 85683-Б in Lyubimovka, which is consistent with the HQ placemark west of Belbek. ([cna.org](https://www.cna.org/reports/2021/08/Russian-Forces-in-the-Southern-Military-District.pdf))
Role
CNA states that the 31st Air Defense Division is responsible for protecting Crimea against air and surface-to-surface missile strikes from the Black Sea and Ukraine, and that the division’s radar capability is provided by the 3rd Radio-Technical Regiment. This supports assessing the regiment as an early-warning, air-surveillance, and targeting-support formation within Crimea’s integrated air-defense network, rather than a missile regiment itself. ([cna.org](https://www.cna.org/reports/2021/08/Russian-Forces-in-the-Southern-Military-District.pdf))
Corroborated footprint
The record is best understood as a dispersed regiment network rather than a single base. Publicly corroborated nodes include Lyubimovka/Belbek-west for headquarters, Ai-Petri/Bedene-Kyr where Ukraine’s DIU described a 3rd Radio-Technical Regiment air-defense base in August 2025, Rozdolne where official Crimean utility notices and Krym.Realii reporting identify 85683-Р, and the Tarkhankut/Olenivka-Mayak area where open-source reporting places 85683-Т and a regiment base near Mayak. ([cna.org](https://www.cna.org/reports/2021/08/Russian-Forces-in-the-Southern-Military-District.pdf))
Operational relevance
Regiment sites have remained active wartime targets. DIU publicly reported striking the Ai-Petri position on August 7, 2025, and earlier reporting described a missile strike on unit 85683 at Ai-Petri on May 13, 2024. Separate reporting from 2024-2025 also tied radar strikes in the Rozdolne and Tarkhankut areas to this broader Crimean air-defense sensor network. ([gur.gov.ua](https://gur.gov.ua/content/vorozhi-rls-u-kupolakh-desantnyi-kater-baza-ppo-na-ai-petri-cherhova-zdobych-rozvidnykiv-u-krymu-3qm82gtzad4.html))
Confidence limits
Not every provided placemark can be tied to a publicly confirmed subordinate address from authoritative records reviewed here. The strongest open-source confirmation covers Lyubimovka, Ai-Petri, Rozdolne, and Tarkhankut/Mayak; Krym.Realii also reports regiment presence in Uyutne, but the exact remaining coordinates in this dataset should be treated as only partially corroborated unless matched with additional documentary or imagery evidence. ([cna.org](https://www.cna.org/reports/2021/08/Russian-Forces-in-the-Southern-Military-District.pdf))