# Russia modernization of Perimeter nuclear command system

> Live situation record from CLSTR: https://clstr.news/situations/russia-modernization-of-perimeter-nuclear-command-system
> Updated: 2026-09-29T17:39:41.000Z. Sources: 12. Developments: 2.

Investigations by The Sunday Times, Danwatch, and the Dossier Center have revealed that Russia has modernized and reactivated a secret, Cold War-era command complex known as Object 1335 or Facility 1335. Located deep beneath Kosvinsky Kamen in the Ural Mountains, near the village of Kytlym, the facility is buried under more than 1,000 feet of granite to withstand advanced bunker-busting munitions.

The site serves as a central component of the Perimeter system, referred to in the West as the ‘Dead Hand’ nuclear retaliation strategy. This system is designed to ensure that automated nuclear launch commands can be transmitted even if Russia’s national leadership and communications are incapacitated during a surprise attack.

Procurement records from 2018 to 2024 indicate massive construction and upgrade efforts, including the acquisition of vast quantities of steel, concrete, and electrical cabling. The facility reportedly contains at least 24 underground chambers and tunnels extending approximately 1.5 miles, equipped with specialized ventilation systems to filter radioactive, chemical, and biological fallout. While experts continue to analyze the system’s exact level of full automation, the scale of these upgrades suggests a significant reinforcement of Russia’s nuclear command and control infrastructure amid heightened geopolitical tensions.

## Claims

- Russia has modernized and reactivated Object 1335, a command complex located beneath Kosvinsky Kamen in the Ural Mountains. (corroborated by 11 sources)
- The facility is part of the Perimeter system, also known as the 'Dead Hand' nuclear retaliation strategy. (corroborated by 11 sources)
- The bunker is designed to withstand American bunker-busting munitions. (corroborated by 6 sources)
- The facility can transmit automated launch commands to surviving missiles if national leadership is incapacitated. (corroborated by 6 sources)
- The bunker is located near the village of Kytlym in the Ural Mountains. (corroborated by 5 sources)
- Construction records show the use of approximately 20,000 tonnes of steel and significant amounts of concrete for the site. (corroborated by 3 sources)
- The facility includes at least 24 underground chambers equipped with specialized ventilation systems. (corroborated by 3 sources)
- The modernized system was reportedly placed back into operational readiness in 2023. (single source)

## Timeline

### 2026-09-29: Russia modernizes secret Kosvinsky Kamen nuclear bunker

Russia is modernizing Facility 1335, a secret command center under Kosvinsky Kamen mountain, designed to withstand nuclear attacks and ensure the activation of nuclear forces via the ‘Dead Hand’ system.

2 sources. https://clstr.news/cluster/russia-modernizes-secret-kosvinsky-kamen-nuclear-bunker

### 2026-09-27: Russia revives Cold War-era ‘Dead Hand’ nuclear retaliation system

Investigations reveal Russia has modernized its ‘Dead Hand’ nuclear retaliation system, specifically the Object 1335 underground command complex in the Ural Mountains.

11 sources. https://clstr.news/cluster/russia-revives-cold-war-dead-hand-nuclear-retaliation-system

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Cite as: Russia modernization of Perimeter nuclear command system. CLSTR, https://clstr.news/situations/russia-modernization-of-perimeter-nuclear-command-system