TASS news agency reported that two S-400 air defense regiments have been fully deployed at Novaya Zemlya Archipelago and the city of Tiksi in Yakutia. Both locations are in Russia’s Arctic region.
By Соколрус (Own work) [CC BY-SA 4.0], via Wikimedia Commons
These long-range air defense regiments are further protected by Pantsir-S units.