1724th Anti-Aircraft Missile Regiment
Identification
Best assessed match is a regiment whose documented current footprint is on Sakhalin, not solely the Birobidzhan-area placemarks. A 2022 Sakhalin governor decree lists facilities for v/ch 22459 in Yuzhno-Sakhalinsk's Khomutovo and associated v/ch 22459-2 facilities in Bolshaya Yelan and at Popova 2; Russian media reporting from February 2021 states the 1724th Anti-Aircraft Missile Regiment was redeployed from the Jewish Autonomous Oblast to Sakhalin. The metadata therefore appears to mix a legacy EAO site with the regiment's later Sakhalin basing. ([base.garant.ru](https://base.garant.ru/405250155/?utm_source=openai))
Current footprint
Open official records place v/ch 22459's Sakhalin infrastructure in a dispersed layout around Yuzhno-Sakhalinsk: military town 45 in Khomutovo includes a checkpoint and a listed position, while v/ch 22459-2 has a command post and barracks in military town 20 at Bolshaya Yelan plus another barracks at ul. Popova, 2. This supports assessment of a regiment spread across operational and support nodes rather than a single compact installation. ([base.garant.ru](https://base.garant.ru/405250155/?utm_source=openai))
Force posture
Russian reporting in February-March 2021 stated that S-400 systems on Sakhalin entered combat duty and linked that move to the 1724th Regiment's redeployment from Birobidzhan; the same reporting said the three regiments of the 25th Air Defense Division had thereby transitioned to S-400. Reporting from July 2022 described S-400 crews on Sakhalin conducting air-defense drills, indicating the island-based posture remained active after the move. ([iz.ru](https://iz.ru/1128690/2021-02-24/s-400-triumf-zastupil-na-boevoe-dezhurstvo-na-sakhaline?utm_source=openai))
Legacy EAO site
The Birobidzhan/Ptichnik coordinates are consistent with the regiment's earlier base history. Older registry material places v/ch 22459 at Starıy Aeroport, Ptichnik, near Birobidzhan, and Russian media reporting says the regiment was moved from the EAO to Sakhalin while a new air-defense brigade was formed in Birobidzhan afterward. Those EAO placemarks should therefore be treated as legacy or former-location indicators unless newer official evidence shows reoccupation by the same regiment. ([complan.pro](https://complan.pro/organization/1027900636521-v-ch-22459?utm_source=openai))