Putin's 'doomsday' sub ready to unleash poseidon on Ukraine as Zelensky pushes too far? | Russia war

Russia is fielding a new Khabarovsk‑class submarine purpose‑built to carry the Poseidon nuclear‑powered undersea drone, a 100‑ton weapon reportedly able to travel intercontinental distances, dive to extreme depths and deliver multi‑megaton strikes against ports and coastal cities. This segment unpacks how a sea‑based “tsunami bomb” fits into Putin’s nuclear revenge calculus after the war in Ukraine.