Poseidon is a Russian unmanned underwater vehicle (described as a robot torpedo or smart torpedo) designed to be launched from submarines and to carry a nuclear warhead over long distances at high speed.
November 12, 2025
high
assertion
Describes the intended design and role of the Poseidon system as reported in coverage of Russian weapons modernization.
The Poseidon is a Russian nuclear-capable underwater drone that was first unveiled in 2018.
January 01, 2018
high
temporal
Unveiling date and classification of the Poseidon system.
The Poseidon is designed to travel across oceans at high speeds using nuclear propulsion and to carry a large nuclear warhead.
January 01, 2018
high
temporal
Design intent and propulsion/armament characteristics reported for the Poseidon system.
Russian officials have described the Poseidon as capable of creating destructive radioactive waves intended to damage coastal targets.
January 01, 2018
high
temporal
Claimed operational effect of the Poseidon system as described by Russian officials.